enterprise nvr series - raid and jbod systems

Document 800-16981 – Rev B – 11/2015

User Guide

Enterprise NVR Series

RAID and JBOD Systems

User Guide

Revisions

Issue Date Revisions

A 03/2014 New document.

B 11/2015 Chapter 5, "System Configuration," added.

Contents | 5

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Contents 1

Cautions and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Regulatory Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Warranty and Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Overview of Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Product Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Main System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Front Panel Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Rear Panel Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22System Monitoring Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Hot-swapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

2 Hardware Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Installation Procedures Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Installing Cache Backup Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Rack Mounting the Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Installing Hard Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3 System Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37System Connection Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37SAS-Host RAID Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41JBOD Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43Management Console Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46Power Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

4 System Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51System Monitoring Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Monitoring Front Panel Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52Monitoring Rear Panel Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55Alarms and I2C Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61Restoring Default System Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

5 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65Accessing the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66Setting the Controller Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71Configuring the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73Saving/Restoring Controller Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83Configuring the Cache Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91Configuring the Communication Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95Resetting/Shutting Down the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106Replacing the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

www.honeywell.com/security

6 | Enterprise RAID and JBOD Systems User Guide

Viewing System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

6 System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113Replacing Controller Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113Replacing Memory Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115Replacing Cache Backup Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116Replacing Power Supply Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118Replacing Cooling Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120Replacing Hard Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Appendix A Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

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Cautions and Warnings

WARNING Install the enclosure in a restricted access location where access is only given to service persons and users who have been instructed about the reasons for the restrictions and any precautions that must be taken. The location should only be accessible by an authorized person through the use of a tool, a lock and key, or other secure means of entry. Access is controlled by the authority responsible for the location.

WARNING Risk of electric shock. Access to this equipment should only be granted to trained operators and service personnel who understand the possible hazardous consequences of accessing non-field-serviceable components, such as the system backplane or power supplies. Unplug the system before moving it or whenever it becomes damaged.

WARNING Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according to local laws.

WARNING Check proper grounding before powering on the enclosure. The AC power cords provide the main earth connection. Ensure reliable earthing with power supply connections other than direct connections to the branch circuit (for example, when using power strips).

WARNING Install the enclosure according to the specifications on the enclosure label. Provide a suitable power source with electrical overload protection. Do not overload the AC supply branch circuit that provides power to the rack. The total rack load should not exceed 80 percent of the branch circuit rating.

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,DO NOT REMOVE COVER (OR BACK).

NO USER SERVICEABLE PARTS INSIDE.REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

THIS SYMBOL INDICATESTHAT DANGEROUS VOLTAGECONSTITUTING A RISK OFELECTRIC SHOCK IS PRESENTWITHIN THE UNIT.

THIS SYMBOL INDICATES THATIMPORTANT OPERATING ANDMAINTENANCE INSTRUCTIONSACCOMPANY THIS UNIT.

DO NOT OPENRISK OF ELECTRIC SHOCK



Regulatory Statements

FCC Compliance Statement

Information to the User: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

Note Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

Canadian Compliance Statement

This Class A digital apparatus complies with Canadian ICES-003.Cet appareil numérique de la Classe A est conforme à la norme NMB-003 du Canada.

Manufacturer’s Declaration of Conformance

North America The equipment supplied with this guide conforms to UL 60950-1 and CSA C22.2 No. 60950-1.

Europe The manufacturer declares that the equipment supplied is compliant with the essential protection requirements of the EMC directive 2004/108/EC and the Low Voltage Directive (LVD) 2006/95/EC, conforming to the requirements of standards EN 55022 for emissions, EN 50130-4 for immunity, and EN 60950 for electrical equipment safety.

Waste Electrical and Electronic Equipment (WEEE)

Correct Disposal of this Product (applicable in the European Union and other European countries with separate collection systems).

This product should be disposed of, at the end of its useful life, as per applicable local laws, regulations, and procedures.

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Safety Instructions

Read these instructions carefully before you install, operate, or transport Honeywell Enterprise NVR RAID and JBOD hardware.

Installation and Operation

• Install the rack cabinet and the associated equipment at a site where the ambient temperature (special room cooling equipment may be required) stays lower than:

• 95° F (35° C) if your system has a battery backup unit.

• 104° F (40° C) if your system does not have a battery backup unit.

• Install the power source socket outlet near the enclosure where it is easily accessible and ground the rack cabinet.

• Secure airflow clearance inside and around the rack cabinet. For proper ventilation, a minimum clearance of 1 inch (2.5 cm) is required between the front of the enclosure and the rack cover and a minimum of 7–8 inches (18–20 cm) is required on the rear side.

• The hard drives and drive trays should only be installed into the system after rack-mount installation is completed.

• All drive trays (even if they do not contain a hard drive) must be installed into the enclosure. Leaving a drive bay or module slot open will severely affect the airflow efficiency within the enclosure, and will consequently lead to system overheating.

• Do not cover the enclosure openings.

• Route the cables inside the rack cabinet.

• Do not leave drive bays empty as it will affect airflow efficiency.

• Secure each enclosure module using its retaining screws.

• Place power cords and other cables away from foot traffic. Do not place items on top of power cords and make sure they do not rest against data cables.

• Install all modules to the enclosure before powering on the system.

• Ensure that the correct power range is being used before powering on.

• Do not remove covers or replaceable modules if they are not faulty.

• If the system is not going to be used for a long period of time, disconnect it from the power mains to avoid transient over-voltage.

• For power source redundancy, please make sure that the two PSUs are plugged into two different power sources (with different circuit breakers).



Service and Maintenance

• Keep the faulty module in place until you have a replacement unit. An empty module greatly affects the airflow efficiency within the enclosure.

• During service operation, place the enclosure on a soft and clean surface to prevent exterior damage. Do not place tools or other items on top of the enclosure.

• When transporting the enclosure, repackage all disk drives separately in the original package foam blocks. Replaceable modules can stay in the enclosure if you are using the original package; if not, repackage them separately as well.

• Disconnect the power cords before servicing or cleaning the enclosure.

• Use a slightly moistened paper sheet or cloth for cleaning. Avoid using liquid or sprayed detergent.

• When replacing components, insert them as gently as possible while ensuring full engagement. Vibration and shock can easily damage hard drives.

• Only qualified service personnel should open the enclosure.

• Contact service personnel if any of the following situations occurs:

• The power cord or plug is damaged.

• The enclosure has been exposed to moisture.

• The system has not been working properly.

• The enclosure was dropped against a hard surface.

• The enclosure shows obvious signs of breakage.

• To move the enclosure, more than one person might be necessary due to its weight. Drives should be removed from the enclosure beforehand.

• The enclosure ears cannot support the weight of the system. Do not use these finger grips when relocating the system.

ESD Precautions

• Handle the modules by their retention screws, ejector levers, or the module's metal frame/faceplate only. Avoid touching the PCB boards or connector pins.

• Use a grounded wrist strap and an anti-static work pad to discharge static electricity when installing or operating the enclosure.

• Avoid dust, debris, carpets, plastic, vinyl, and styrofoam in your work area.

• Do not remove any module or component from its anti-static bag before installation takes place.

• Drives must not be stacked on top of each other without their protective drive trays. Even when drives are fixed in the drive trays, contacting the exposed PCB or rear-side interface may damage the drives.

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Warranty and Service

Subject to the terms and conditions listed on the Product warranty, during the warranty period Honeywell will repair or replace, at its sole option, free of charge, any defective products returned prepaid.

In the event you have a problem with any Honeywell product, please call Customer Service at 1.800.323.4576 for assistance or to request a Return Merchandise Authorization (RMA) number.

Be sure to have the model number, serial number, and the nature of the problem available for the technical service representative.

Prior authorization must be obtained for all returns, exchanges, or credits. Items shipped to Honeywell without a clearly identified Return Merchandise Authorization (RMA) number may be refused.

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About This Manual

This manual introduces hardware components of the Honeywell Enterprise NVR Series 2U, 3U, and 4U RAID and 2U and 3U JBOD systems and describes how to install, monitor, and maintain them. This manual is intended for system integrators, installers, and end-user operators.

Overview of Contents

This manual contains the following chapters and appendixes:

• Chapter 1, Introduction, briefly describes RAID and JBOD systems, and provides descriptions of the front and rear panels, main system components, and system monitoring features.

• Chapter 2, Hardware Installation, describes procedures for installing cache backup modules, rack mounting RAID and JBOD enclosures, and installing hard drives.

• Chapter 3, System Connection, describes typical connection configurations for RAID and JBOD systems.

• Chapter 4, System Monitoring, provides information about monitoring the status of RAID and JBOD systems through the built-in firmware, the front and rear panel LED indicators, and audible alarms.

• Chapter 5, System Configuration, describes procedures for accessing the system remotely, configuring the controller, saving/restoring configurations, and viewing system information.

• Chapter 6, System Maintenance, describes procedures for replacing controller modules, memory modules, cache backup modules, power supply units, cooling modules, and hard drives.

• Appendix A, Technical Specifications, lists the physical, electrical, operational, and regulatory specifications of the Honeywell Enterprise NVR Series 2U, 3U, and 4U RAID and 2U and 3U JBOD systems.



Related Documents

For additional installation information, refer to the following documents:

• Enterprise JBOD Quick Installation Guide (800-16576)

• Enterprise RAID Quick Installation Guide (800-16577)

To find the most up-to-date Enterprise NVR Series RAID and JBOD documentation, check out the product webpage:

http://www.honeywellvideo.com/products/video-systems/accessories/maxpro-vms/enterprise-solutions/963973.html





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1Introduction 1

This chapter contains the following sections:

• Product Overview, page 15

• Main System Components, page 16

• Rear Panel, page 17

• Chassis, page 17

• Front Panel Components, page 20

• Rear Panel Components, page 22

• System Monitoring Features, page 26

• Hot-swapping, page 27

Product Overview

Comprised of RAID and JBOD units, RAID systems store hard drives and control the entire storage system. JBOD systems connect to a master RAID system and can expand storage capacities by adding more hard drives.

The RAID and JBOD systems support 3/6 Gbps SAS drive interfaces. The 2U/3U/4U enclosures are designed to accommodate 3.5-inch hard drives. Drive capacity can be expanded by attaching expansion hard drive enclosures (JBODs).



Main System Components

RAID Controller and Interface

Each RAID controller contains a main circuit board and a pre-installed DIMM module.

A cache backup module is available as an optional accessory. It consists of a battery backup unit and flash backup module. Cached data is quickly distributed to a flash backup module with the support of a battery backup unit in the event of a power outage. Because of the shorter discharge time, battery backup unit life expectancy is extended, and data is safely kept in flash regardless of the traditional 72 hours limitation.

The controller’s embedded firmware features power-saving modes, variable fan speeds, and exiled drive handling for reducing energy consumption.

JBOD Controller and Interface

The JBOD enclosure is managed by expander controllers that distribute data flow to individual disk drives and report operating status through a proprietary enclosure service via in-band protocols. The enclosure, together with other JBODs, connects to a RAID system and serves as a building block of a scalable configuration.

The firmware supports communications with enclosure devices, SAS disk drives, and a RAID system featuring 6 Gbps SAS expansion ports.

The SAS interface provides ease of cabling through Mini-SAS connectors. With a backplane supporting enterprise-class SAS hard drives, the system is ideal for adding large capacity to a storage pool.

Power Supply Unit and Cooling Modules

2U and 3U Systems

In 2U and 3U systems, two cooling modules are built into the power supply unit (PSU) to protect the system from overheating, while two hot-swappable PSUs provide constant power to the system. The modular nature of the system and the accessibility of all major components also makes the system easy to maintain.

4U Systems

In 4U systems, the cooling modules are located on both sides of the controller at the rear. The controller PSUs have built-in cooling modules that assist the main cooling modules in keeping the system ventilated.

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Rear Panel

The secondary controller slot is filled with a dummy cage (D). Some models include an additional cooling module in the center-bottom position.

Chassis

The chassis (or simply "enclosure") is the rugged enclosure that protects the internal hard drives in a RAID or JBOD system. It is designed for installation in a rack or cabinet.

RAID Front Panel

The following illustration shows the front panel configuration of RAID models:

2U System

3U System

4U System

1 LCD Keypad Panel The LCD panel (16 characters × 2 rows) and function keys are used to display system events and configure the firmware.

2 Drive Trays The drive trays are hot-swappable and hold a 3.5-inch hard drive.

3 Handles The handles on either side of the enclosure are used to move the enclosure in and out of the cabinet.



JBOD Front Panel

The following illustration shows the front panel configuration of JBOD models:

RAID Rear Panel

The following illustration shows the rear panel configurations of 2U, 3U, and 4U RAID models.

1 Drive Trays Each drive tray is hot-swappable and holds a 3.5-inch hard drive.

2 LED Panel The LED panel indicates the operating status through 5 LEDs.

3 Mute/Service Button The mute button can be used to silence an alarm or indicate to the administrator that the system requires service.

4 Rotary ID Switch The rotary ID switch is used to set a unique ID for each JBOD when connected in a multi-array environment.

1 Controller A

2 Controller B

3 Power Supply Units and Cooling Modules

4 Cooling Module

2U System

3U System

4U System

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CAUTION For single controllers, a dummy cage is placed in the second controller position. Do not remove the dummy cage as this will disrupt the internal airflow.

Hot-swappable power supply units (PSUs) provide power to the RAID system. In 2U and 3U systems, redundant cooling modules ventilate the system (some models have the cooling modules embedded in the PSUs). In 4U systems, the cooling modules are user-serviceable standalone units located on both sides of the controller.

JBOD Rear Panel

The following illustration shows the rear panel configuration of JBOD models.

CAUTION A dummy cage is placed in the bottom controller position. Do not remove the dummy cage as this will disrupt internal system airflow.

The controller module contains a SAS expander board, which distributes I/Os from and to the managing RAID system. The controller also reports component status through the SAS links to the RAID system.

Hot-swappable PSUs provide power to the JBOD system. A power switch is located on each PSU. Redundant cooling modules ventilate the system.

WARNING An integrated backplane separates the front and rear sections of the enclosure. This circuit board provides logic level signals and low voltage power paths. Thermal sensors and I2C devices are embedded to detect system temperatures and PSU/cooling module operating status. This board contains no user-serviceable components. Accessing the backplane board may cause fatal damage to the system. Also, physical contact with the backplane board may result in electric shock.

1 Controller A

2 Dummy Cage

3 Power Supply Unit and Cooling Module



Front Panel Components

LCD/LED Panels

LCD Keypad Panel (RAID Models)

The LCD keypad panel provides full access to RAID configuration settings and system information. Initially, the LCD screen shows the system's model name and the name can be manually assigned for identification in a multi-array configuration.

LED Panel (JBOD Models)

The LED panel on a JBOD is located on the chassis ear.

1 Status LEDs From top to bottom, the status LEDs are power (PWR), busy (BUSY), and attention (ATTN).

2 LCD Screen The 16×2-character LCD screen provides access to configuration settings and system information via the firmware-embedded utility.

3 Mute Button Press MUTE to silence an alarm.

4 Function Buttons Press the ENT button for two (2) seconds on the initial screen to enter the main menu. Press the ESC button to clear the current event. Press the UP and DOWN arrow keys to select viewing items.

1 Service Status LED

2 Power Supply Status LED

3 Cooling Module Status LED

4 Temperature Sensor Status LED

5 System Fault Status LED

6 Rotary ID Switch

7 Mute/Service Button

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CAUTION If critical faults are indicated on the LED panel, verify the cause of the problem as soon as possible and contact your system vendor to arrange for a replacement module.

Chassis Ear

Each chassis ear features a finger grip and two holes for securing the enclosure to the front rack posts. In JBOD models, an LED panel is mounted on the left chassis ear. A plastic housing conceals the chassis ear.

To access the finger grips, flip open the panel. You may then grasp the finger grip for retrieving the enclosure out of a rack.

CAUTION The chassis ears cannot support the weight of the system. Do not use these finger grips when re-locating the system.

Drive Tray

The drive tray is designed to accommodate separately purchased 3.5-inch SAS interface hard disk drives.

CAUTION Be careful not to warp, twist, or contort the drive tray in any way (for example, by dropping it or resting heavy objects on it). If the drive bay superstructure is deformed or altered, the drive trays may not fit into the drive bay.

1 Rotary Bezel Lock

2 Release Button

3 Drive Busy LED

4 Power Status LED



Drive bays are arranged as four bays wide by three, four, or six bays high. The drive bays are numbered from left to right and from top to bottom.

Rear Panel Components

RAID Controller Modules

The following illustration shows the rear panel components of RAID controller modules.

CAUTION To avoid damaging sensitive components, only remove the RAID controller module to install or replace the memory modules, cache backup module, or a failed controller.

1 Host Ports

2 Convection Holes

3 SAS Expansion Port

4 Controller Status LED

5 Serial Port

6 Ethernet Port

7 Restore Default Button

8 Restore Default LED

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JBOD Controller Modules

The following illustration shows the rear panel components of JBOD controller modules.

The JBOD storage expansion controller contains a circuit board within a metal canister, interfaced through hot-swap docking connectors at the back-end. Two SAS wide ports on the interface faceplate connect to a managing RAID system or to other JBODs.

CAUTION To avoid damaging sensitive components, only remove the JBOD controller module to replace a failed controller.

Cache Backup Module for RAID Models

The cache backup module is available as an optional accessory. The cache backup module consists of a battery backup unit and flash backup module. The cache backup module can sustain cache memory after a power failure. The use of a CBM is highly recommended in order to safeguard data integrity. If you are using a single controller model and would like to install a cache backup module, see Installing Cache Backup Modules, page 30.

Note The battery backup unit can be serviced by the user but the flash backup module is not serviceable by the user.

1 SAS Expansion Ports

2 SAS Expansion Port LED

3 Controller Status LED

4 Extraction Levers and Retention Screws

5 Convection Holes

1 Battery Backup Unit

2 Flash Backup Module



Note The battery backup unit is only partially charged when shipped. After powering on the system, the battery backup unit will start charging to its full capacity. It normally requires about twelve hours for the battery to be fully charged. If the battery will not fully charge, report the problem to your system vendor. You can also check the status of the battery module using the firmware.

2U and 3U RAID Power Supply Unit and Cooling Module

The 2U and 3U RAID systems come with two redundant, hot-swappable power supply units. Each PSU has a power socket, power switch, PSU status LED, cooling module, cooling module status LEDs, retention screw, and an extraction handle.

The cooling modules can operate at three rotation speed settings. Under normal operating conditions, the cooling fans run at the low speed. Under the following conditions, cooling fans raise their rotation speed to increase the airflow:

• Component failure: if a cooling module, PSU, or a temperature sensor fails.

• Elevated temperature: if the temperature breaches the upper threshold set for any of the interior temperature sensors.

• During the system initialization stage, the cooling fans operate at high speed and return to low speed once the initialization process has completed and no erroneous condition detected.

Note There are two upper temperature thresholds: one for event notification and the other for triggering higher fan rotation speed. The preset value for event notification can be changed using the firmware-embedded configuration utility, while the fan speed trigger cannot be changed.

1 Power Socket

2 Power Switch

3 PSU Status LED

4 Cooling Module


6 Retention Screw

7 Extraction Handle

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4U RAID Power Supply Unit

The 4U RAID systems are equipped with three redundant, hot-swappable, load-sharing power supply units at the rear of the enclosure. The PSU is housed in a 1U canister containing both the power supply and dedicated cooling modules.

Each PSU has an extraction handle, retention screw, PSU status LED, and a power socket.

4U RAID Cooling Module

4U RAID systems have two cooling modules at the rear of the enclosure that provide ventilation. The cooling fans operate at two fan speeds. When the system is operating normally, the cooling fans operate at the lower speed. If a system module fails, or when one of the temperature thresholds has been exceeded, the cooling fans automatically raise their rotation speeds to draw more airflow.

The cooling module has two cooling module fan status LEDs and an extraction handle.

1 Extraction Handle

2 Retention Screw

3 PSU Status LED

4 Power Socket

1 Fan Status LED

2 Extraction Handle



System Monitoring Features

RAID and JBOD systems are equipped with a wide range of monitoring functions. These are briefly described below.

Expansion Enclosure Support

Monitoring

A managing RAID system monitors the status of JBOD components:

• Expander controller (presence, voltage, and thermal readings)

• Power supply unit

• Cooling module

• Enclosure thermal sensor

• Service (the service signal to specify a specific enclosure)

• Disk drives

JBOD Identifier

If more than one JBOD is connected to the managing RAID system, each JBOD needs a unique enclosure ID set by the rotary switch on the LED panel. The managing RAID system will produce an audible alarm and deliver warning messages if there is a conflict between JBOD IDs.

Note The IDs for JBODs are #1 to #15. For additional details, see JBOD Connections, page 43.

Cooling Module Speed Adjustment

If any of the detected temperature readings breaches the temperature threshold, the firmware running on the managing RAID system automatically increases the rotation speed of all cooling fans.

JBOD Status Monitoring

A RAID system, when connected with expansion JBODs, acquires the component status within other enclosures via a proprietary enclosure monitoring service using the in-band connectivity. No additional management connection is required.

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I2C Bus

The detection circuitry and temperature sensors are interfaced through a non-user-serviceable I2C bus. When JBODs are attached to RAID controllers, JBOD component status is reported through in-band protocols over expansion links that are managed by a proprietary enclosure service.

Firmware

The system is configured using preloaded firmware. The firmware can be accessed either through the front LCD keypad panel or a terminal emulation program running on a management computer connected to the system's serial port.

Audible Alarms

The system comes with audible alarms that are triggered when certain active components fail or when certain controller or system thresholds are exceeded. When you hear an alarm, it is imperative that you determine the cause of the alarm and correct the problem immediately. Failure to do so can result in permanent damage to the system.

Event notification messages indicate the completion of array configuration tasks and are always accompanied by two or three successive prolonged beeps. The alarm can be turned off using the mute button on the front panel.

Hot-swapping

The system comes with a number of hot-swappable components that can be exchanged while the system is still online without affecting the operational integrity. These components should only be removed from the system when they are being replaced.

The following components can be user-maintained and hot-swappable:

• PSU (including cooling modules)

• Cooling modules (selected models)

• Hard drive

Normalized airflow ensures sufficient cooling of the system and is only attained when all components are properly installed. Therefore, a failed component should only be removed when a replacement is available. For instructions on how to replace these hot-swappable components, see Chapter 6, System Maintenance on page 113.

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2Hardware Installation 2


• Installation Procedures Overview, page 29

• Installing Cache Backup Modules, page 30

• Rack Mounting the Enclosure, page 31

• Installing Hard Drives, page 33

Installation Procedures Overview

This section provides an overview of the hardware installation process.

1. Unpacking: Unpack the system and confirm that you have received all the required components using the packing list included in the package.

2. Cache Backup Module Installation (Optional): If you purchased the cache backup module as an additional item, install it in the RAID controller before rack mounting the enclosure or installing the hard drives.

3. Rack Installation (Optional): If you plan to rack mount the system, install the enclosure in the rack before installing the hard drives. This requires at least two people due to the weight of the enclosure.

4. Hard Drive Installation: Remove the drive trays from the enclosure, install SAS hard drives (purchased separately) into the drive trays, and then replace the drive trays in the enclosure.

5. Cable Connection: Use the supplied power cords to connect the system to the main power. It is recommended that you connect power cords to separate, independent power sources (with different circuit breakers) for redundancy.

6. Initial Startup and Configuration: After all components have been properly installed and all cables properly connected, you can power on the system and configure the RAID array.



Installing Cache Backup Modules

The cache backup module (CBM) is an optional item and can be purchased from your system vendor. The CBM should be installed before rack mounting the system.

The following instructions describe how to install a battery backup unit. If you need to replace the flash backup module, contact your system vendor.

To install a backup battery unit

1. Remove the RAID controller from the enclosure.

a. Loosen the screws under the two ejection levers.

b. Push the ejection levers downwards to release the controller from the module slot. The controller should slide out easily.

2. Place the controller on a clean, static-free surface. Take care to hold the controller only by its metal canister and avoid touching the circuit board or connector pins.

3. Remove the four screws located on the sides of the controller, and then remove the top cover.

4. Attach the backup battery unit to the underside of the top cover using three screws.

5. Insert the back end of the battery backup unit into the controller (1), and then connect the backup battery unit power cable to the appropriate receptacle on the controller (2).

6. Secure the cover to the controller using the four screws removed previously (3).

7. Replace the controller in the enclosure.

a. Slide the controller into the empty module slot until you start to feel the contact resistance, use slightly more force and then push the two ejection levers upwards.

b. Tighten the retention screws under the ejection levers to secure the controller in place.

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Note A new or replaced battery backup unit takes at least 12 hours to charge to its full capacity. Follow the procedures in Replacing Cache Backup Modules on page 116 to replace a faulty battery backup unit with a new one in order to maintain fault-tolerant features.

Rack Mounting the Enclosure

If you plan to rack mount the system, you should do this before installing the hard drive(s).

To install a RAID or JBOD enclosure into a rack

1. Determine where in the rack you want to install the enclosure. The rail location will vary depending on the size of the enclosure you are installing (2U, 3U, or 4U). The following illustration shows the correct positioning.

Unit boundary

Unit boundary

Unit boundary

M5 cage nuts

M5 × 9.0 mm

M5 cage nuts

M5 × 9.0 mm

3U/4U Front Rack Post 3U/4U Rear Rack Post

M5 × 9.0 mm

M5 × 9.0 mm

M5 × 9.0 mm

M5 × 9.0 mm

M5 × 9.0 mm

M5 × 9.0 mm

2U Front Rack Post 2U Rear Rack Post



2. For each rail, loosen the four retention screws securing the front and rear sections of the rail, and then adjust the rail length to match the distance between the front and rear rack posts.

3. Attach the left and right rails to the front and rear rack posts using the supplied M5 truss head screws and nuts at the locations shown below.

4. Tighten the retention screws that were loosened in step 2.

5. Attach the flange filler plates to the backs of the enclosure ears.

6. Attach the inner glides to the sides of the enclosure using the supplied #6-32 L6 flat head screws. Ensure that the part of the glide that extends past the end of the enclosure bends inward (see top view below).

7. Slide the enclosure into the rack. To prevent injury, two people are required for this task.

8. Attach the enclosure to the front rack posts using the supplied M5, M6, or #10-32 screws.

M5 × 9.0 mm

M5 × 9.0 mm

M5 × 9.0 mm

M5 × 9.0 mm

Slide runnerRear rack postFront rack post

J #6-32 × 10 mm screws

Flange filler plate

Side ViewTop ViewInner glide

Release latch #6-32 L6 screws


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Installing Hard Drives

Before you begin installing the hard drives, do the following:

• Purchase SAS hard drives. See Hard Drive Specifications for details.

• Purchase the necessary cabling to connect the system to the hosts. For sample topologies and configuration options, see Chapter 3, System Connection. For a list of compatible cables, contact your system vendor.

• Cables must be handled with care and must not be bent. To prevent emission interference within a rack system and accidental cable disconnection, the routing paths must be carefully planned.

• Ensure that you are aware of the related positions of each plug-in module and interface connector.

• If you want to change the pre-installed memory module, refer to the replacement procedures in Replacing Memory Modules, page 115.

Hard Drive Specifications

The system uses SAS (3 Gbps or 6 Gbps) 3.5-inch hard drives. Since the maximum capacity used in each drive for composing a RAID array is the maximum capacity of the smallest drive, large storage capacity hard drives are recommended.

You should try to use hard drives with the same capacity. Even hard drives by the same manufacturer, of the same model, and claiming the same rated capacity, may actually carry different block numbers meaning that their capacity may not be exactly the same.

Note When configuring hard drives into a RAID array, you may use a slightly smaller capacity as the "Maximum Disk Capacity" in each individual hard drive.

SAS Interfaces

The following illustration shows a dual-port SAS interface.

The SAS interface features dual-ported connectivity with pins on both sides of its connector. The SAS interface includes SAS primary links (1), a power link (2), and SAS secondary links (3).



Installing a Hard Drive

The hard drives and drive trays should only be installed after rack mounting is complete. If the hard drives are installed first, the system will be too heavy to handle and the possible impact during installation may damage the hard drives.

Handle hard drives with extreme care and observe all ESD precautions when installing the drives. Only use screws supplied with the system package as longer screws may damage the drive.

To install a hard drive

1. Press the release button to open the bezel, and gently pull the drive tray out of the enclosure.

2. Place the hard drive in the drive tray with the label facing up, making sure that the interface connector is facing towards the back of the tray.

3. Adjust the location of the hard drive until the mounting holes on the hard drive are aligned with those on the drive tray, and then secure the hard drive to the drive tray with the four supplied screws.

4. Replace the drive tray in the enclosure.


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5. When the drive tray is fully inserted, close the front bezel and use a small flat-blade screwdriver to turn the bezel lock from unlock to the lock position.

CAUTION Each drive bay must be populated with a tray even if it does not contain a hard drive. If a bay is left empty, ventilation will be disrupted and the system will overheat.

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3System Connection 3


• System Connection Overview, page 37

• SAS-Host RAID Connections, page 41

• JBOD Connections, page 43

• Management Console Connections, page 46

• Power Connections, page 47

System Connection Overview

This chapter outlines the general configuration rules you should follow when connecting a storage system and provides basic information about topologies. You can use these topologies or refer to them as a guide for developing your own unique topologies.

Preliminary Considerations

When selecting the number of hard drives to be included in a logical drive, the host channel bandwidth and the mechanical performance of individual disk drives should be considered.

It is a good practice to calculate performance against the host port bandwidth when designing an application topology. As an example, if eight members are included in a logical drive and this logical drive is associated with a host ID (LUN mapping), the combined performance of this logical drive should approximate the channel bandwidth. If, for example, two 6-drive logical arrays are associated with two IDs residing on a single host channel, there may be a trade off with performance.



Also consider the following:

• A spare drive carries no data stripes and will not contribute to disk-level performance. Refer to the documentation for your hard drives for performance data.

• When cabling, follow all the specifications. Pay attention to signal quality and avoid electronic noise from adjacent interfaces; for example, do not lay power cords on optical cables.

• The disk drives in the same logical array should have the same capacity, but it is preferred that all the drives within a chassis have the same capacity.

• Disk drives in the same logical drive should have the same capacity, but it is preferred that all the disk drives within a chassis have the same capacity.

• A spare drive should have a minimum capacity that is equivalent to the largest drive that it is expected to replace. If the capacity of the spare is less than the capacity of the drive it is expected to replace, the controller will not proceed with the failed drive rebuild.

• When rackmounting a system, leave enough slack in the cables so that they do not bend to a diameter of less than 3 inches (76 mm).

• Route the cables away from places where it can be damaged by other devices, foot traffic, or fan exhaust.

• Do not over-tighten or bend the cables.

Host-Side Topologies

The primary concern for configuring host-side topologies is to avoid points of failure. It is therefore recommended that the host ports be connected to at least two host bus adapters. It is also preferable to apply corresponding host port type switches (for example, use Fibre Channel switches for Fibre Channel host ports).

Note In order to manage the fault-tolerant data paths and to optimize data throughput on multiple data paths, it is necessary to apply multi-pathing software or utilities such as Linux Device Mapper.

Host-Side Parameters

It is strongly recommended that you use your system’s default settings. Should you feel the need to adjust your host-side parameters, please consult on-site technical personnel or technical support.

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Maximum Concurrent Host LUN Connection ("Nexus" in SCSI)

The "Max Number of Concurrent Host-LUN Connection" menu option is used to set the maximum number of concurrent host-LUN connections.

Maximum concurrent host LUN connection ("nexus" in SCSI) is the arrangement of the controller internal resources for use with a number of the current host nexus.

For example, you can have four hosts (A, B, C, and D) and four host IDs/LUNs (IDs 0, 1, 2, and 3) in a configuration where:

• Host A accesses ID 0 (one nexus).

• Host B accesses ID 1 (one nexus).

• Host C accesses ID 2 (one nexus).

• Host D accesses ID 3 (one nexus).

These connections are all queued in the cache and are called four nexus.

If there is I/O in the cache with four different nexuses, and another host I/O comes with a nexus different than the four in the cache (for example, host A accesses ID 3), the controller returns busy. This occurs with the concurrent active nexus. If the cache is cleared, it accepts four different nexuses again. Many I/O operations can be accessed via the same nexus.



Maximum Queued I/O Count

The "Maximum Queued I/O Count" menu option enables you to configure the maximum number of I/O operations per host channel that can be accepted from servers. The predefined range is from 1 to 1024 I/O operations per host channel, or you can choose the "Auto" (automatically configured) setting. The default value is 256 I/O operations.

The appropriate "Maximum Queued I/O Count" setting depends on how many I/O operations the attached servers are performing. This can vary according to the amount of host memory present as well as the number of drives and their size. But optimum performance usually results from using the "Auto" or "256" settings.


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SAS-Host RAID Connections

One SFF-8088-to-SFF-8088 host link cable is included per controller. Contact your system vendor if you want to purchase additional cables.

The cables (28 AWG × 8 pairs) are 100-ohm, UL-approved, and lead-free, and come in 20 in. (50 cm), 47 in. (120 cm), or 67 in. (170 cm) cable lengths. Connectors can be secured to enclosure receptacle using thumb screws or a latching mechanism.

Note SAS cables are sensitive and must be handled with care. To prevent interference within a rack system, the cable routing path must be carefully planned and the cables must not be bent.

DAS (Direct-Attached Storage) Connection with Redundant Host Path

With more hard drives over the SAS expansion links, you can create more logical groups of drives. Multi-pathing software or Linux Device Mapper is necessary for controlling and optimizing the access to logical drives via multiple data paths.



DAS (Direct-Attached Storage) Connection to Two Servers

Note If you would like a LUN (a logical partition) to be accessed by multiple hosts, file locking or multi-pathing access control is required.


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JBOD Connections

SAS host link cables are included with JBOD systems. If you need to purchase additional cables or if you need cables of a different length, contact your system vendor.

The cables (28 AWG × 8 pairs) are 100-ohm, UL-approved, and lead-free, and come in 20 in. (50 cm), 47 in. (120 cm), or 67 in. (170 cm) cable lengths. Connectors can be secured to enclosure receptacle using thumb screws or a latching mechanism.

Note SAS cables are sensitive and must be handled with care. To prevent interference within a rack system, the cable routing path must be carefully planned and the cables must not be bent.

JBOD SAS Expansion Configuration

The SAS expansion port connects to expansion JBOD enclosures. Single controller RAIDs connect to single controller JBODs. A longer cable is required if connections to JBODs are made from two opposite directions. Routing through two different connections can avoid loss of data links if one enclosure fails in between.

There is a rotary ID switch on every expansion enclosure that can be manually configured using a flat blade screwdriver. The configurable IDs for JBODs are from 1 to 15. Numbering normally starts from the JBOD closest to the managing RAID enclosure. Make sure a unique ID is configured on each JBOD so that the SAS WWN addresses of disk drives can be properly assigned. RAID system firmware automatically manages these addresses.



Configuration Rules

Follow these rules when connecting SAS interfaces across RAID and JBOD enclosures:

• With data paths through separate SAS domains, access to disk drives can be continued in the event of a cable link or SAS JBOD controller failure.

• SAS expansion cables are available for JBODs. If many JBODs are connected, a longer SAS external cable may be necessary to connect a JBOD from the opposite direction offering high redundancy.

• One expansion link connects JBODs from RAID to the nearest JBOD, and then to the farthest JBOD. Another expansion link connects to the farthest JBOD from the opposite direction and then to the nearest JBOD.

• Each expander controller on the SAS JBOD controls a "SAS Domain" that connects one of the alternative interfaces on all of the disk drives in the enclosure. For example, one expander unit controls Domain A, and the other controls Domain B. In a fault-tolerant topology, the SAS external links always connect to the SAS ports on the same SAS domain.

• The SAS domains can be identified by the expanders' locations (for example, Controller A/Slot A, Controller B/Slot B).

• On the RAID system, each RAID controller can be considered as managing a separate SAS domain.

1 RAID Controller A

2 RAID Controller B

3 JBOD Controller A

4 JBOD Controller B

5 Dual-Ported SAS Drives

6 Expander

7 To other JBODs


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JBOD Expansion Connections

The maximum number of JBOD units that can be controlled by a single controller SAS RAID system through the SAS expansion port is 14.

RAID SystemMax. Number of Drives

Max. Number of 2U JBOD Units

Max. Number of 3U JBOD Units

2U (12-Bay) 312 14

3U (16-Bay) 316 14

4U (24-Bay) 324 14



Management Console Connections

When connecting the RAID system to external consoles, note the following:

• Serial port: A standard DB9 straight cable should be supplied by the user (null modem may be required if you are using a third-party cable).

• LAN port: A LAN cable should be supplied by the user.

The serial port's default settings are as follows:

If your network environment is not running DHCP server protocols, a default IP (10.10.1.1) can be used to access for the first time.

1 Serial Port (for Telnet Access)

2 DB9 Serial

3 CAT5e LAN Cable

4 Local Area Network

5 SANWatch/Telnet Console

Baud rate: 38400Data bit: 8Parity: NoneStop bit: 1Flow control: Hardware


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Power Connections

After all of the hard drives have been properly installed and the I/O ports or management interfaces have been connected, the system can be powered on.

Before powering on the system, check that:

• The cache backup module has been properly installed.

• The hard drives are correctly installed in the drive trays.

• All the drive trays, whether or not they contain a hard drive, have been installed into the system.

• The system has been correctly connected to host computer(s), management computers, or external networking devices.

• All system components have been acclimated to the surrounding temperature.

Connecting Power Cords

Make sure you that you use the power cables provided. DO NOT use extension cables. The power cables are designed to connect ONLY and DIRECTLY to relocatable power taps (RPTs) on the server cabinet. Use the included cable clamps to secure the power cord connection.

To connect a power cord

1. Attach the cable strap to the cable clamp.

2. Attach cable clamp to the power cord by opening the clamp and wrapping it around the base of power cord.



3. Adjust the position of cable strap using the release tab.

4. Position it so that when a power plug is connected to system power the barb anchor can be inserted into the anchor hole above the power socket.

2U and 3U RAID Models

4U RAID Models


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Powering On the System

Before you turn on the RAID system, turn on the expansion JBOD storage systems first if your network configuration has multiple arrays.

To power on the system

1. Turn on the power switch for every power supply unit in the system, from left to right.

2. Turn on the networking devices.

3. Turn on the host computers. The host computers should be the last devices that are turned on.

Status Check

After turning on the RAID system, verify the system status by checking the LEDs on the front and rear panels. For more information, see Chapter 4, System Monitoring.

The LED on the LCD keypad panel should illuminate after a successful initialization process, indicating that system status is ready. System initialization and the power-on self-test may take up to five minutes, during which time the system fault LED may be lit. The system fault LED will turn off when the boot-up process is complete.

While powering on the RAID system, wait for the front panel LCD screen to show "READY" or "No Host LUN."

The LCD screen startup sequence is described below:

Initializing...Please Wait...

This screen appears when the PSUs are turned on.

Power On Self TestPlease Wait...

System is performing a self-test.

Power OnInit Completed

System power on self-test is complete.

ENT RAID vX.XX System is accessing various interfaces.

ENT RAID vX.XXxGB RAM, Wait...

Verifying installed memory.

ENT RAID vX.XX System is ready. You can begin configuring the system.

ENT RAID vX.XXReady

System is ready for I/Os.



Power Off the System

Before you turn off the RAID system, make sure no time-consuming processes (like "Regenerate Logical Drive Parity" or "Media Scan") are taking place.

To power off the system

1. Close applications running on the host computers to stop all I/O access to the system.

2. Flush the cache, if applicable.

a. Check the C_Dirty LED on the controller module. It will be lit amber if there is cached data in the DRAM.

b. Use the Shutdown Controller function to flush all cached data. This prepares the RAID system to be safely powered down.

3. Turn off the power switch for every power supply unit in the system.

LegendEnt: Press the Enter (Ent) button.Ent (blue): Press and hold the Enter (Ent) button for 2 seconds.---->: Press the up or down arrow to scroll to the desired menu.

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4System Monitoring 4


• System Monitoring Overview, page 51

• Monitoring Front Panel Components, page 52

• Monitoring Rear Panel Components, page 55

• Alarms and I2C Bus, page 61

• Restoring Default System Settings, page 62

System Monitoring Overview

There are a three main ways a system manager can monitor the status of a RAID or JBOD system:

• Firmware: The RAID controller is managed by pre-installed firmware that is accessible in a terminal program via the serial port.

• LEDs: LED indicators notify users of system status, events, and failures. LEDs are located on both the front and rear panel of the enclosure.

• Audible alarms: An audible alarm is triggered in the case of system failures.



Monitoring Front Panel Components

LCD Keypad (RAID Models)

The LCD keypad on RAID systems consists of five buttons, three LEDs, and a 16×2-character LCD screen that provides access to the embedded firmware utility.

Name Description

1. ESC Button Press ESC to skip the current event or return to the previous menu level.

2. UP Button Press the up arrow to navigate through menu options.

3. DOWN Button Press the down arrow to navigate through menu options.

4. ENT Button Press ENT to browse events. To see a detailed description of each event, use the up or down buttons to select the event, then press and hold down ENT until a short beep is heard, then use the up or down buttons to browse through the description lines. To delete the event, tap ENT lightly.

5. Mute Button Press MUTE to silence the alarm until the next event occurs.

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LCD Panel LED Definitions (RAID Models)

Chassis Ear LED Definitions (JBOD Models)

LED Name Color Status

1. PWR (Power) Blue BLUE indicates that power has been turned on and the system status is normal.

OFF indicates that no power is supplied to the system or the RAID system has failed.

2. BUSY White FLASHING WHITE indicates that there is active traffic on the host/drive channels.

OFF indicates that there is no activity on the host/drive channels.

3. ATTEN (Attention) Red RED indicates that a component failure/ status event has occurred.

OFF indicates that the system and all its components are in proper operation status.

1 Service LED

2 Power Supply Status LED


4 Temperature Sensor Status LED

5 System Fault Status LED

6 Rotary ID Switch

7 Mute/Service Button



CAUTION If critical faults are indicated on the LED panel, verify the cause of the problem as soon as possible and contact your system vendor to arrange for a replacement module.


1. Service White WHITE indicates that the system is being serviced or is requiring services.

OFF indicates that the system is not being serviced nor is requiring services.

2. Power Green/Amber GREEN indicates that the system is powered properly.

AMBER indicates that there is a power failure in the system.

3. Cooling Fan Green/Amber GREEN indicates that the cooling fan is operating properly.

AMBER indicates that there is a cooling fan failure in the system.

4. Thermal Green/Amber GREEN indicates that the internal temperature is within the safety threshold.

AMBER indicates that the internal temperature has exceeded the safety threshold.

5. System Fault Green/Amber GREEN indicates that the system is operating normally.

AMBER indicates that the system has encountered abnormal conditions.


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Drive Tray LED Definitions

Two LED indicators are located on the right side of each drive tray. When notified by a drive failure message, you should check the drive tray indicators to find the correct location of the failed drive.

Monitoring Rear Panel Components

Controller LED Definitions (RAID Models)


1. Drive Busy Blue FLASHING BLUE indicates that the drive is busy (data is being written to or read from the drive).

OFF indicates that there is no activity on the disk drive.

2. Power Green/Red GREEN indicates that the drive bay is populated and is working normally.

RED indicates that the disk drive has failed or a connection problem has occurred.




1. Ctrl Status Green/Amber GREEN indicates that a RAID controller is operating healthily.

AMBER indicates that a component failure has occurred, or inappropriate RAID configurations have caused system faults. It is also lit during the initialization process.

2. C_Dirty Amber AMBER indicates the following:• Cache memory is dirty.• Data in flash backup module is being flushed to

cache.• Errors occurred with cache memory (ECC error).• Data is being flushed from flash backup module

to drive (when power is restored).• Battery voltage is lower than 2.5 V.• Battery temperature reading is abnormal.• Battery is not present.

FLASHING AMBER indicates cached data is being transferred to the flash module after a power outage. Once the transfer is done, all LEDs turn off.

OFF indicates that the cache is clean, and that the battery backup unit is capable of sustaining memory in case of power loss.

This signal is local to each controller.

3. Temp. Amber AMBER indicates that the detected CPU/board/ enclosure temperature has exceeded the high temperature threshold.

OFF indicates that the detected temperature reading is within the safe range.

4. CBM Status Green/Amber GREEN indicates the cache backup module is ready. Both BBU and FBM are present.

AMBER indicates CBM failure, meaning either BBU or FBM has failed.

FLASHING AMBER indicates BBU being charged.

OFF means BBU is not installed in a single-controller "G" model.

5. Hst Bsy Green FLASHING GREEN indicates traffic on the host bus.

6. Drv Bsy Green FLASHING GREEN indicates traffic on the drive channels.

7. Restore Default Green GREEN indicates RAID configuration default successfully restored. The LED turns off after a few seconds.


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Controller LED Definitions (JBOD Models)

Ethernet Management Port LEDs

Type I


1. SAS Link Green SOLID GREEN indicates all 4 PHYs are validly linked to external devices.

FLASHING GREEN indicates one of the 4 PHYs links has failed.

OFF indicates all 4 PHYs are offline.

2. SAS Speed Green/Amber GREEN indicates 6 Gbps link speed.

AMBER indicates 3 Gbps link speed.

OFF indicates connection not established.

3. Ctrl Status Green/Amber GREEN indicates the controller is operating normally.

AMBER indicates a component failure has occurred. It is also lit during the initialization process.


1. Speed Green GREEN indicates 100 Mbps connection.

OFF indicates 10 Mbps or slower connection established.

2. Link/Activity Green SOLID GREEN indicates connection established.

FLASHING GREEN indicates data activity.




Type II

SAS-Host Port LEDs


1. Speed Green GREEN indicates 1 Gbps connection.

OFF indicates 10/100 Mbps or slower connection established.

2. Link/Activity Amber SOLID AMBER indicates connection established.

FLASHING AMBER indicates data input/output.



1. SAS Link Green SOLID GREEN indicates all 4 PHYs are validly linked to external devices.

FLASHING GREEN indicates less than 4 PHY links are connected.

OFF indicates that all 4 PHYs are offline.

2. SAS Speed Green/Amber GREEN indicates a 6 Gbps connection.

AMBER indicates a 3 Gbps connection.



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Power Supply Unit/Cooling Module LED Definitions

The power supply unit (PSU) contains the LEDs for the PSU and the cooling module statuses. When either of the unit fails, you need to replace the PSU as soon as possible. For details, please refer to Replacing Power Supply Units, page 118.

2U/3U Power Supply Unit/Cooling Module LEDs

1. Power Supply Unit LED

2. Cooling Fan LEDs

LED State Color Description

Flashing Green The system is connected to the power source but the power switch is not turned on.

Solid Green The PSU is operating normally.

Solid Red The PSU has failed and is unable to supply power to the system.


Off N/A The cooling fan is operating normally.

Solid Red The cooling fan has failed.



4U RAID Power Supply Unit LED

4U RAID Cooling Module LED


Flashing Green The system is connected to the power source but the power switch is not turned on.

Solid Green The PSU is operating normally.

Solid Red The PSU has failed and is unable to supply power to the system.

Off N/A The PSU is not turned on and the power cord is disconnected.


Off N/A The cooling fan is operating normally.

Solid Red The cooling fan has failed.


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Alarms and I2C Bus

Alarms

If any of the following components fails, an audible alarm is triggered:

• Cooling fan module

• Power supply unit

• Cache backup module

• Hard disk drives

• Sensors or presence detection circuitries

When you hear an alarm, read the error message on the terminal to determine what triggered the alarm, and then take appropriate action to correct the problem. The alarm can be turned off using the mute button on the front panel.

I2C

The operating status of the power supply unit and cooling fan modules are collected through an I2C serial bus. If either of those modules fails, you will be notified by an audible alarm and an error message on the terminal.



Restoring Default System Settings

You may need to restore default system settings when the firmware update procedure requires it or when you need to reset the password to access the RAID system. Restoring default settings is a last-resort function as all configurations, such as parameters and host LUN mappings, will be erased.

To restore default settings

1. Stop all host I/Os.

2. Save the current configuration using the "Export NVRAM" function on the LCD panel.

3. If you want, make a list of the existing ID/LUN mapping information as the default restoration will erase the ID/LUN mapping associations (for example, which logical drive is associated with which host ID/LUN).

4. Remove Controller B from the enclosure.

5. Power off the RAID system.

6. Press and hold the Restore Default button on Controller A and, while pressing the button, power on the RAID system.

7. When the "Restore Def." LED (indicated by the black arrow) lights up and the "Default Restored" firmware event message appears, release the Restore Default button.



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8. Restore previous settings using the "Import NVRAM from reserve space" or "Restore NVRAM from Files" in the firmware. ID/LUN mapping will be restored.


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5System Configuration 5


• Accessing the System, page 66

• Setting the Controller Password, page 71

• Configuring the Controller, page 73

• Saving/Restoring Controller Configurations, page 83

• Configuring the Cache Memory, page 91

• Configuring the Communication Interface, page 95

• Resetting/Shutting Down the Controller, page 106

• Replacing the Controller, page 110

• Viewing System Information, page 111



Accessing the System

You can access the system remotely using either a terminal emulator application or the web interface.

Accessing the System with the Terminal Interface

The following instructions describe how to access the system via HyperTerminal (included with Windows XP).

Establishing an RS-232C Connection

1. Connect a DB9 Male to DB9 Female serial cable (user-supplied) from the RS-232C port on the RAID controller to the RS-232C port on the management console.

2. On the management console, click Start Programs Accessories Communications HyperTerminal.

3. In the Connection Description dialog box, enter a name and choose an icon for the connection, and then click OK.

RS-232CManagement Console

DB9 Male to DB9 Female Serial Cable

System Configuration | 67

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4. In the Connect To dialog box, in the Connect using box, select the COM port (typically COM1), and then click OK.

5. In the COM Properties dialog box, enter the following settings, and then click OK.

6. Press Ctrl+L to refresh the main screen of the management console.

7. Press Enter to access the main menu.

• Bits per second 38400• Data bits 8• Parity None• Stop bits 1• Flow control Hardware



Understanding the Terminal Interface Layout

The HyperTerminal interface has the following display elements:

Top bar Shows date and time, model name, and cache memory status (clean or dirty).

Ongoing processes • e# indicates logical drive # is being expanded.• i# indicates logical drive # is being initialized.• R# indicates logical drive # is being rebuilt.• P# indicates the parity of logical drive # is being regenerated.• S# indicates logical drive # is being scanned.

Battery charge Shows battery level in plus signs (+) or color blocks. Four plus signs (++++) indicates full charge.

Main screen Shows current menu items and their options. Selected items are highlighted.

Bottom bar Shows menu controls.


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Navigating the Main Menu

• To move the cursor, press the up/down arrow keys.

• To select an item, press Enter.

• To cancel a selection or exit a menu, press Esc.

• To refresh the screen, press Ctrl+L.

Closing a Connection

When using the terminal interface, always log out using the Esc key. Do not finish the session in other ways, such as closing the command prompt, as doing so could result in a system error.

Accessing the System with the Web Interface

Before accessing the system with the web interface, ensure that the subsystem is connected to the Internet through a LAN.



Establishing a Connection

1. Connect the RAID controller and management console to the local area network (LAN) using an Ethernet cable.

2. On the management console, open a compatible web browser (Internet Explorer, Chrome, Firefox), type the system’s default IP address (10.10.1.1) in the address bar, and then press Enter.

3. Click Login to access the main menu. (By default, no password is required.)

Understanding the Web Interface Layout

The web interface has the following display elements:

Menu Bar

Status Bar

Refresh Button

Device List Device Status Area

Tasks Area


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Closing a Connection

To log out of the web interface, click System, and then click Logout.

Setting the Controller Password

By default, a password is not required to access the RAID controller. If you want, you can create a password using the controller’s LCD panel, the terminal interface, or the web interface.

Using the LCD panel and terminal interface, you can also set the password validation timeout. If you expect the subsystem to be left unattended for long periods of time, it is recommended that the password validation timeout be set to "Always."

Note The combined length of the controller name and password cannot exceed 32 characters.

Setting a Password Using the LCD Panel

To create a password:

1. Press and hold the ENT button for 2–3 seconds to enter the main menu.

2. Navigate to System Functions Change Password News Password.

3. Use the down button to select the first character, press ENT, select the second character, press ENT, and so on, until the password is complete.

Menu Bar Contains the System, Settings, Language, and About menus.

Refresh Button Refreshes the screen.

Device List Shows system configuration (device bar) or storage configuration (pool bar) in a tree structure, providing an overall view of the system.

Device Status Area Shows the current status and configurations of the selected device.

Tasks Area Shows configuration and viewing options for the selected device.

Status Bar Shows the number of connected devices, error events, and warnings.



Note The character options, in order, are: 0 1 2 3 4 5 6 7 8 9 . ! " # $ % & ’ ( ) * + , - / : < = > ? @ [ ] ^ _ ‘ { | } a b c d e f g h i j k l m n o p q r s t u v w x y z A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

4. Press and hold ENT for 2–3 seconds to save the password.

5. On the Re-Ent Password screen, reenter the password using the process described in steps 3 and 4.

Note The steps for changing a password are the same as for creating a password except that you are required to enter the old password before entering the new password.

To set the password validation timeout:


2. Navigate to View and Edit Configuration Parameters Controller Parameters Password Validation Timeout–Disable, and then press ENT.

3. Use the down button to select one of the following options:

• Disable

• 1 min

• 2 mins

• 5 mins

• Always

4. Press and hold ENT for 2–3 seconds to save your selection.

Setting a Password Using the Terminal Interface

To create/change a password:

1. From the main menu, navigate to system Functions change Password.

2. Type a password, and then press Enter.

To set the password validation timeout:

1. From the main menu, navigate to view and edit Configuration parameters Controller Parameters Password Validation Timeout, and then press Enter.

2. Select one of the following options:

• Disable

• 1 minute

• 2 minutes

• 5 minutes

• Always


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Setting a Password Using the Web Interface

1. In Device List, click the name of your device.

2. Under Tasks, click System Settings.

3. In System Settings, click the System tab, and then click the Password tab.

4. In the Old Password box, type the old password (default is blank).

5. In the New Password box, type the new password.

6. In the Confirm New Password box, retype the new password.

7. Click Apply to save the password.

Configuring the Controller

This section describes how to configure the hard drives using the Quick Setup wizard, configure the controller name and unique identifier, mute the beeper, and set the date and time.

Configuring the Controller Using the Quick Setup Wizard

The Quick Setup wizard lets you quickly create a logical volume for managing storage. As part of the setup process, you will need to choose a RAID level. These are described below.



Understanding RAID Levels

What is RAID?The term RAID describes technologies that distribute data to multiple drives to produce high data transfer rates and fail-safe systems. RAID stands for "Redundant Array of Independent Disks." Redundant means that the failure of a single drive will not cause the disruption or failure of an entire system or even lead to data loss.

RAID is built on technologies such as mirroring (mirroring two or more drives), duplexing (mirroring with two controllers) and striping (combination of multiple drives to a logical drive and block-wise data distribution to these drives).

There are different ways to distribute data to multiple disks so that the highest possible data throughput and reliability is achieved. These are referred to as RAID levels.

RAID 0RAID 0 is the fastest RAID mode. In a RAID 0 array, the available capacities of each disk are added together so that one logical volume mounts on the computer. If one physical disk in the array fails, the data of all disks become inaccessible because parts of the data have been written to all disks.

Application

RAID 0 is ideal for users who need maximum speed and capacity. Video editors working with very large files may use RAID 0 when editing multiple streams of video for optimal playback performance. A RAID 0 array is more suited for actively working with files (editing video, for example) and should not be used as a single storage backup solution or on mission-critical systems.

RAID 1In RAID 1, an identical copy of the data is maintained on a second physical disk, so that if one of the two disks fails, the data is still fully available on the other disk and use of the disk can continue normally.

Application

RAID 1 is ideal for users requiring high fault tolerance at low cost, with less importance being placed on large amounts of storage capacity or top performance. RAID 1 is commonly used in accounting databases and enterprise servers.

RAID 5

In RAID 5, data is striped across all disks (minimum of three) and a parity block for each data block is written on the same stripe. If one physical disk fails, the data from the failed disk can be rebuilt onto a replacement disk. No data is lost in the case of a single disk failure, but if a second disk fails before data can be rebuilt to a replacement drive, all data in the array will be lost.

Application

RAID 5 combines data safety with efficient use of disk space. Disk failure does not result in a service interruption because data is read from parity blocks.

RAID 6

In RAID 6, data is striped across all disks (minimum of four) and two parity blocks for each data block are written on the same stripe. If one physical disk fails, the data from the failed disk can be rebuilt onto a replacement disk. This form of RAID can support up to two disk failures with no data loss. RAID 6 also provides faster rebuilding of data from a failed disk.

Application

RAID 6 provides data reliability with the addition of efficient rebuilding in case of a failed drive. RAID 6 is ideal for applications where security is the highest priority.


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To run the Quick Setup wizard:


2. Under Tasks, click Quick Setup.

3. On the Configure Basic Device Information screen, do the following:

a. In the Host Name box, type a name for the controller.

b. In the Time Zone box, select your time zone relative to Greenwich Mean Time (GMT). For example, if you are in the Pacific Standard Time zone, you would select -08:00.

c. Click Next.



4. On the Create Logical Volume screen, do the following:

a. In the Logical Volume Name box, type a name for the logical volume.

b. Select the desired data protection level: No Protection, Good Protection (default), Better Protection, Best Protection, or select Customize to create a custom level of protection.

c. Click Next.

5. On the Create Partition screen, do the following:

a. Select the Capacity Available for Snapshot check box, and select one of the following values: 10%, 20%, 30% (default), 40%, or 50%.

b. In the Number of Partitions box, select a value from 0 to 5.

c. In the Name box, type a name for the partition.

d. In the Size box, type the desired capacity of the partition.

e. If you want to enable thin provisioning (no minimum reserved space will be created), select the Thin-Provisioning check box.

Note Thin provisioning lets you allocate a large amount of virtual capacity for a logical volume regardless of the physical capacity actually available. Actual space is only used when data writes occur. By automatically allocating system capacity to applications as needed, thin provisioning can significantly increase storage utilization.


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f. If you want to enable the map function, select the Map check box.

g. Click Next.

6. On the Summary screen, review the settings that you have selected, and then, if you agree, click OK to start the setup process.

When the setup is complete, the message "The task has been completed" appears.



Setting the Controller Name and Identifier

If you want, you can name the controller. If there is no controller password, the controller name can be up to 30 characters long. If there is a password, the combined length of the controller name and password cannot exceed 32 characters.

You can also assign a new controller identifier—a unique ID that helps the controller identify its counterpart in a dual-active configurations. Do not assign the same identifier to multiple controllers, as this can lead to WWNN, WWPN, and name port conflicts.

The controller identifier can be used to generate a Fibre Channel (FC) WWN node name. In the event of a controller failure, the node name prevents host computers from misaddressing the storage system during the failover/failback process. When a controller fails and a replacement is combined as the secondary controller, the FC port node names and port names are passed down to the replacement controller.

The controller identifier can be the MAC address of the controller’s Ethernet port. In the event of a controller failure, the MAC address is taken over by a surviving controller.

LCD Panel Method

To set the controller name:


2. Navigate to View and Edit Config Parms Controller Parameters Controller Name Enter Ctlr Name.

3. Use the down button to select the first character, press ENT, select the second character, press ENT, and so on, until the controller name is complete.

4. Press and hold ENT for 2–3 seconds to save the controller name.

To set the controller unique identifier:


2. Navigate to View and Edit Config Parms Controller Parameters Ctrl Unique ID, and then press ENT.

3. Clear the default ID.

4. Use the down button to select the first character, press ENT, select the second character, press ENT, and so on, until the unique identifier is complete.

Note The character options, in order, are: 0 1 2 3 4 5 6 7 8 9 A B C D E

5. Press and hold ENT for 2–3 seconds to save the controller unique identifier.


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Terminal Interface Method

From the main menu, navigate to view and edit Configuration parameters Controller Parameters.

• To assign a name to the controller, select Controller Name, press Enter, type a name for the controller, and then press Enter.

• To assign a new unique identifier to the controller, select Controller Unique Identifier, press Enter, type a unique identifier for the controller (00000 to FFFFF in Hex), and then press Enter.

Web Interface Method





3. On the Controller tab, in the Controller Parameters area, do the following:

• To assign a name to the controller, in the Controller Name box, type a name for the controller.

• To assign a new unique identifier to the controller, in the Unique Identifier (HEX) box, type an identifier for the controller (00000 to FFFFF in Hex).

4. Click Apply, and then click OK.

Muting the Beeper

You can temporarily mute the beeper using the controller’s LCD panel, the terminal interface, or the web interface. Each of these methods is described below.

LCD Panel Method

Press the MUTE button on the LCD panel.


1. From the main menu, navigate to system Functions Mute beeper.

2. Press Enter to display the Mute Beeper option, and then select Yes.


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3. Click the System tab, and then select Mute Beep Sound.


Setting the Date and Time

You can set the time zone, date, and time using the controller’s LCD panel, the terminal interface, or the web interface. Each of these methods is described below.

LCD Panel Method


2. Navigate to View and Edit Config Parms Controller Parameters Set Controller Date and Time, and then press ENT.

3. To set the time zone, on the Time Zone screen, press ENT, and then enter your time zone relative to Greenwich Mean Time (GMT). For example, if you are in the Pacific Standard Time zone, you would enter -08:00. Use the up/down buttons to select the first character, press ENT, select the second character, press ENT, and so on. Then press and hold ENT for 2–3 seconds to save your selection.

Note The character options, in order, are: 0 1 2 3 4 5 6 7 8 9 + – :

4. To set the date and time, navigate to Date and Time, press ENT, and then enter the current date and time in the order of month, day, hour, minute, year (MMDDhhmmYYYY). Use the up/down buttons to select the first character (0–9), press ENT, select the second character, press ENT, and so on. Then press and hold ENT for 2–3 seconds to save your selection.



Note The time (hhmm) must be entered in 24-hour format. For example, 3:00 PM is entered as 1500.


From the main menu, navigate to view and edit Configuration parameters Controller Parameters Set Controller Date and Time, and then do the following:

• To set the time zone, select Time Zone, enter your time zone relative to Greenwich Mean Time (GMT), and then press Enter. For example, if you are in the Pacific Standard Time zone, you would type -08:00.

• To set the date and time, select Date and Time, type the current date and time in the order of month, day, hour, minute, year (MMDDhhmmYYYY), and then press Enter. The time (hhmm) must be entered in 24-hour format.


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3. On the Controller tab, in the Controller Parameters area, do the following:

• In the Timezone (GMT) box, enter your time zone relative to Greenwich Mean Time (GMT). For example, if you are in the Pacific Standard Time zone, you would enter -08:00.

• In the Date box, enter the current date in MM/DD/YYYY format.

• In the Time box, enter the current time in 24-hour format.


Saving/Restoring Controller Configurations

This section describes how to save and restore NVRAM configuration data, as well as how to save debugging data.



Saving Controller Configurations to a Reserved Space

You can save the controller configuration as NVRAM data to the reserved space in multiple storage systems. The NVRAM data should be saved any time a change is made to the configuration.

Note Logical drive mapping is not duplicated when transferring the NVRAM data from one controller to another, since LUN mapping is tied to specific name tags of logical drives. Therefore, you will need to repeat the LUN mapping process.

LCD Panel Method


2. Navigate to System Functions Controller Maintenance Export NVRAM to reserved space, and then press ENT.

Export NVRAM to reserved space changes to Export NVRAM to reserved space?

3. Press and hold ENT for 2–3 seconds to initiate the export. The message "Export NVRAM in progress" appears, followed by "Export NVRAM is completed."


1. From the main menu, navigate to system Functions Controller Maintenance Export NVRAM data to reserved space, and then press Enter.

2. At the prompt, Export NVRAM data to reserved space?, select Yes, and then press Enter.

If the export is successful, the message "Export NVRAM Data Completed!" appears.

What is saved What is not saved

• Host-side configurations• Drive-side configurations• Logical drive configurations• Controller-related preferences

• Data service settings, such as snapshot configuration (snapshot meta table is kept on the drive media of the source volume)

• Logical drive mapping


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3. Select the System tab, and then select the Download/Upload tab.

4. Select Export NVRAM to Host Disk.


6. You are prompted to save the file. Click Save.



7. Navigate to the directory where you want to save the file, and then click Save.

8. When the file has finished saving, you will see a window with the message "Download Complete." You can go ahead and close it.


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Saving Debugging Information

If you are having problems with the controller, in addition to saving NVRAM configuration data, you can save event log data for debugging purposes. You can then provide this information to Technical Support.


2. Under Tasks, click Event Log.

3. Click Export, and then save the file.

Restoring Controller Configurations from the Saved NVRAM Data

You can restore NVRAM configuration data that you have saved to the reserved space.

LCD Panel Method


2. Navigate to system Functions Controller Maintenance Impor NVRAM from Reserved Space, and then press ENT.

Impor NVRAM to reserved space changes to Import NVRAM include passwd?

3. Press and hold ENT for 2–3 seconds to initiate the import. The message "Import NVRAM in progress" appears, followed by the message: "NOTICE: Change made to this setting will NOT take effect until the controller is RESET. Prior to resetting the controller, operation may not proceed normally."




1. From the main menu, navigate to system Functions Controller Maintenance Import NVRAM data from reserved space, and then press Enter.

2. At the prompt, Import NVRAM data from reserved space?, select Import all including password or Import all except password, and then press Enter.

If the import is successful, the message "Import NVRAM Data Completed!" appears.




3. Select the System tab, and then select the Download/Upload tab.


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4. Select Import NVRAM from Host Disk, and then click Browse.

5. Navigate to the directory where the file is located, and then click Open.

6. At the prompt, click Yes to continue.



7. The message "The operation has been completed" appears. Click Close to continue.

8. You are then prompted to shut down and reset the controller. Click Yes to continue.

A progress bar appears indicating that the controller is being reset. The controller will restart automatically, at which point you be disconnected from the web interface.


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Configuring the Cache Memory

This section describes how to disable and re-enable write-back caching and how to set up periodic cache flushes.

Disabling/Enabling Write-Back Cache

The write-back cache function is enabled by default. When write-back cache is enabled, the write requests from the host are held in cache memory and distributed to disk drives later. Write-back caching can dramatically improve write performance by caching unfinished writes in memory, allowing them be committed to drives in a more efficient manner. In the event of a power failure, a battery backup module can retain cached data for days (usually 72 hours).

When write-back cache is disabled, host writes are distributed directly to individual disk drives. Write-through mode is safer if your controller is not configured in a redundant pair and there is no battery backup or UPS device protecting cached data.

LCD Panel Method

To disable write-back caching:


2. Navigate to View and Edit Config Parms Caching Parameters Write-back Cache Enabled, and then press ENT.

Write-back Cache Enabled changes to Disable Write-Back Cache?

3. Press and hold ENT for 2–3 seconds to disable write-back cache.

To re-enable write-back caching:


2. Navigate to View and Edit Config Parms Caching Parameters Write-back Cache Disabled, and then press ENT.

Write-back Cache Disabled changes to Enable Write-Back Cache?

3. Press and hold ENT for 2–3 seconds to re-enable write-back cache.


1. From the main menu, navigate to view and edit Configuration parameters Caching Parameters.



2. Do one of the following:

• To disable write-back cache, select Write-Back Cache Enabled, and then, at the prompt Disable Write-Back Cache?, select Yes, and then press Enter.

• To re-enable write-back cache, select Write-Back Cache Disabled, and then, at the prompt Enable Write-Back Cache?, select Yes, and then press Enter.





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3. On the Controller tab, in the Caching Parameters area, do one of the following:

• To disable write-back cache, in the Write-Back Cache box, select Disable.

• To re-enable write-back cache, in the Write-Back Cache box, select Enable.


Setting Up Cache Flushes

You can flush cached writes periodically to maintain data integrity in systems without battery protection or synchronized cache between controllers.

LCD Panel Method


2. Navigate to View and Edit Config Parms Caching Parameters Periodic CachFlush Time–Disabled, and then press ENT.

Periodic CachFlush Time–Disabled changes to Set CachFlush Time–Disabled?

3. Using the up/down buttons , select one of the following options:

• Disabled

• ConSync (continuous sync — cache is flushed as soon as possible)

• 30 secs

• 60 secs

• 120 secs

• 300 secs

• 600 secs (10 minutes)





1. From the main menu, navigate to view and edit Configuration parameters Caching Parameters Periodic Cache Flush Time – Disabled.

2. Select one of the following options:

• Disabled

• Continuous Sync (cache is flushed as soon as possible)

• 30 secs

• 60 secs

• 120 secs

• 300 secs

• 600 secs (10 minutes)

3. Press Enter.





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3. On the Controller tab, in the Caching Parameters area, in the Periodic Cache Flush Time box, select one of the following options:

• Disabled

• Continuous (cache flushed as soon as possible)

• 30 sec

• 60 sec

• 120 sec

• 300 sec

• 600 sec (10 minutes)


Configuring the Communication Interface

This section describes how to disable and re-enable various network protocols, configure RS232C terminal emulation and baud rates, view TCP/IP statistics, and configure IP address settings.

Disabling/Enabling Network Protocols

All network protocols are enabled by default. It is strongly recommended that you keep these protocols enabled.


1. From the main menu, navigate to view and edit Configuration parameters Communication Parameters Network Protocol Support.



2. Select the protocol that you want to disable/enable:

3. Press Enter.


1. On the web interface, click the name of your device in the Devices list.


3. Select the Communication tab.

• Telnet • SNMP• FTP • DHCP• SSH • PING


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4. On the Management Port tab, select the protocol you want to enable or disable, and then click Configure.


Configuring the RS-232C Interface

By default, the RS-232C (COM1) baud rate is set to 38400 and terminal emulation is enabled. If you want, you can change the baud rate and/or disable terminal emulation.

LCD Panel Method

To change the baud rate:


2. Navigate to View and Edit Config Parms Communication Parameters RS-232 Port Configuration Com1 Configuration Baud-rate 38400, and then press ENT.

3. Baud-rate 38400 changes to Baud-rate 38400 ChangeTo 2400?

4. If you want to change the baud rate to 2400, proceed to step 5. Otherwise, press the down button to view additional options. The available baud rate settings are 2400, 4800, 9600, 19200, and 38400.


To disable terminal emulation:


2. Navigate to View and Edit Config Parms Communication Parameters RS-232 Port Configuration Com1 Configuration Term Emul Enable, and then press ENT.

Term Emul Enable changes to Term Emul Enable ChangeTo Disab?

3. Press and hold ENT for 2–3 seconds to disable terminal emulation.

To re-enable terminal emulation:


2. Navigate to View and Edit Config Parms Communication Parameters RS-232 Port Configuration Com1 Configuration Term Emul Disable, and then press ENT.

Term Emul Disable changes to Term Emul Disable ChangeTo Enable?

3. Press and hold ENT for 2–3 seconds to re-enable terminal emulation.




To change the baud rate:

1. From the main menu, navigate to view and edit Configuration parameters Communication Parameters RS-232 Port Configuration COM1 Configuration Baud-rate 38400.

2. Press Enter, select a new baud rate from the list (2400, 4800, 9600, 19200), and then press Enter again.

To disable terminal emulation:

1. From the main menu, navigate to view and edit Configuration parameters Communication Parameters RS-232 Port Configuration COM1 Configuration Terminal Emulation Enabled.

2. Press Enter, select Disable, and then press Enter again.


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3. Select the Communication tab, and then select the RS-232 tab.

4. In the Terminal Emulation box, select Enable or Disable.

5. In the Baud Rate box, select 2400, 4800, 9600, 19200, or 38400 (bps).


Viewing LAN (TCP/IP) Interface Statistics

You can view the following TCP/IP statistics using either the controller’s LCD panel or the terminal interface:

Link Operations Shows the connection speed and communication direction (full duplex allows communication in both directions simultaneously, while half duplex does it one direction at a time).

Transmit Packets Shows the amount of packets sent out.

Receive Packets Shows the amount of packets received.

Collisions Shows the number of packet errors.

Transmit Errors Shows the number of transmit errors.

Receive Errors Shows the number of receive errors.

Receive Miss Packets Shows the number of missed receive packets.



LCD Panel Method


2. Navigate to View and Edit Config Parms Communication Parameters LAN IP Configuration (MAC address) (LAN IP) View Statistics, and then press ENT.

3. Use the down button to view information for the various categories (Link Operations, Transmit Packets, Receive Packets, Collisions, Transmit Errors, Receive Errors).


From the main menu, navigate to view and edit Configuration parameters Communication Parameters Internet Protocol (TCP/IP) (LAN IP) View Statistics.

Configuring the IP Address

You can manually set the IP address, subnet mask, and gateway of the controller.

LCD Panel Method


2. Navigate to View and Edit Config Parms Communication Parameters LAN IP Configuration (MAC address) (LAN IP) View & Setup IP Address IP Addr, and then press ENT.

3. On the Input Addr screen, enter a new IP address. Use the up/down buttons to select the first character (0–9), press ENT, select the second character, press ENT, and so on. When you are finished, press and hold ENT for 2–3 seconds to save your changes.

4. Press the down button to display the NetMask screen, and then press ENT.

5. On the Input Addr screen, enter a new subnet mask. Use the up/down buttons to select the first character (0–9), press ENT, select the second character, press ENT, and so on. When you are finished, press and hold ENT for 2–3 seconds to save your changes.


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6. Press the down button to display the Gateway screen, and then press ENT.

7. On the Input Addr screen, enter a new gateway address. Use the up/down buttons to select the first character (0–9), press ENT, select the second character, press ENT, and so on. When you are finished, press and hold ENT for 2–3 seconds to save your changes.


1. From the main menu, navigate to view and edit Configuration parameters Communication Parameters Internet Protocol (TCP/IP) (LAN IP) View and Set IP Address.

2. Do one or more of the following:

• To set the IP address, select Address, press Enter to clear the existing address, type a new address, and then press Enter to save your changes.

• To set the subnet mask, select NetMask, press Enter to clear the existing address, type a new address, and then press Enter to save your changes.

• To set the gateway, select Gateway, press Enter to clear the existing address, type a new address, and then press Enter to save your changes.







4. On the Management Port tab, select the channel you want to configure, and then click Configure.

5. In the IPv4 area, set Type to Static, DHCP, or RARP.

6. If the IP address type is set to Static, type the IP address, subnet mask, and gateway address in the IP Address, Subnet Mask, and Default Gateway boxes.


Static Address is manually assigned by the user.

DHCP Dynamic Host Configuration Protocol. Address is automatically assigned.

RARP Reverse Address Resolution Protocol. Address is obtained from network.

IP Address Specifies the IPv4 address of the subsystem.

Subnet Mask Specifies the subnet mask for the IP address.

Default Gateway Specifies the IP address of the network gateway.


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Configuring the IP Address (IPv6)

If your system supports Internet Protocol version 6 (IPv6), you can manually set the IPv6 address, prefix, and route.

Supported IPv6 features include:

LCD Panel Method


2. Navigate to View and Edit Config Parms Communication Parameters LAN IP Configuration (MAC address) (LAN IP) View & Setup IP Address V6 Addr, and then press ENT.

3. On the Input Addr screen, enter a new IPv6 address. Use the up/down buttons to select the first character (0–9), press ENT, select the second character, press ENT, and so on. When you are finished, press and hold ENT for 2–3 seconds to save your changes.

4. Press the down button to display the Prefix screen, and then press ENT.

5. On the Input Addr screen, enter a new subnet mask. Use the up/down buttons to select the first character (0–9), press ENT, select the second character, press ENT, and so on. When you are finished, press and hold ENT for 2–3 seconds to save your changes.

6. Press the down button to display the Route screen, and then press ENT.

7. On the Input Addr screen, enter a new gateway address. Use the up/down buttons to select the first character (0–9), press ENT, select the second character, press ENT, and so on. When you are finished, press and hold ENT for 2–3 seconds to save your changes.

• Neighbor unreachability detection• Stateful autoconfiguration• Stateless address

autoconfiguration (SLAAC)

• ICMPv6• Aggregate Global Unicast Address• Neighbor discovery




1. From the main menu, navigate to view and edit Configuration parameters Communication Parameters Internet Protocol (TCP/IP) (LAN IP) View and Set IP Address.

2. Do one or more of the following:

• To set the IPv6 address, select IPv6 Address, press Enter to clear the existing address, type a new address, and then press Enter to save your changes.

• To set the subnet mask, select Subnet prefix length, press Enter to clear the existing address, type a new address, and then press Enter to save your changes.

• To set the gateway, select Route, press Enter to clear the existing address, type a new address, and then press Enter to save your changes.





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4. On the Management Port tab, select the channel you want to configure, and then click Configure.

5. In the IPv6 area, set Type to Static, Auto, or Disable.

6. If the IP address type is set to Static, type the IP address, subnet prefix length, and route in the IPV6 Address, Subnet Prefix Length, and Route boxes.


Static Address is manually assigned by the user.

Auto Address is automatically assigned.

Disable Address is disabled.

IPV6 Address Specifies the IPv6 address of the subsystem.

Subnet Prefix Length

Specifies the length of the prefix in bits (equivalent of subnet mask in IPv4).

Route Specifies the route for IPv6 networking.



Resetting/Shutting Down the Controller

If you want, you can reset the controller without it shutting down. However, it is generally recommended to use the shutdown procedure as this enables cache memory to be written to the hard drives, ensuring data consistency.

Resetting the Controller

LCD Panel Method


2. Navigate to System Functions Reset This Controller, and then press ENT.

Reset This Controller changes to Reset This Controller?

3. Press and hold ENT for 2–3 seconds. A series of status messages appear on the LCD screen until the reset is complete.


1. From the main menu, navigate to system Functions Reset Controller, and then press Enter.

2. At the prompt, Reset Controller? Yes/No, select Yes, and then press Enter. The message "Resetting Controller Please Wait" appears.


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After resetting the controller, the following screen appears:




3. Select the System tab, and then select Reset Controller.




Shutting Down the Controller

Note The shutdown procedure does not shut down the host server.

LCD Panel Method


2. Navigate to System Functions Shutdown This Controller, and then press ENT.

Shutdown This Controller changes to Shutdown This Controller?

3. Press and hold ENT for 2–3 seconds.

4. After the shutdown has completed, the option Shutdown Complet Reset Ctlr? appears. Press and hold ENT for 2–3 seconds to reset the controller.


1. From the main menu, navigate to system Functions Shutdown Controller, and then press Enter.

2. At the prompt, Shutdown Controller? Yes/No, select Yes, and then press Enter.


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3. Select the System tab, and then select Shutdown Controller.

4. Click OK.

5. At the prompt, Reset the Controller? Yes/No, click Yes.

Clearing the Core Dump File in the Reserved Space

When the firmware detects critical errors (such as a multi-bit error or PCI bus parity error), it stores system configurations and error codes into a core dump file and saves it in the 256 MB disk reserved space. Support engineers can later examine the file to determine the cause of the error. The core dump file is a last-resort option for debugging critical issues in the event of serious system faults.

Clear the core dump file only after you have successfully analyzed and fixed any errors. This function is only available in the terminal interface.



To clear the core dump file:

From the terminal interface main menu, navigate to system Functions Controller Maintenance Clear core dump, and then press Enter.

Replacing the Controller

In the event of a controller failure, the ATTEN light on the LCD panel will flash red and a controller failure message will appear on the LCD screen and on the terminal interface. Leave the failed controller in place until a replacement controller is available to avoid disrupting the internal airflow.

To replace a failed controller, follow these steps:

1. Shut down the system.

2. Turn off the two power switches on the rear panel.

3. Remove the failed controller module from the enclosure.

4. Insert the replacement controller module into the enclosure.

5. Turn on the two power switches on the rear panel.

6. Power on the system.

7. Verify the controller settings.


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Viewing System Information

You can view system information, including the model name, cache size, firmware version, boot record version, and serial number using the controller’s LCD panel, the terminal interface, or the web interface. Each of these methods is described below.

LCD Panel Method


2. Navigate to View System Information, and then press ENT.

3. Navigate to one or more of the following submenus to view its information:


From the main menu, navigate to view system Information, and then press Enter.

The following system information is displayed:

• Model Name • Base Board Rev. ID• Total Cache Size • Base Board ID• Firmware Version • ID of NVRAM• Boot Record Version • Ctlr Position• Serial Number • Host Board

• Model Name • Base Board Rev. ID• Total Cache Size • Base Board ID• Firmware Version • ID of NVRAM Defaults• Boot Record Version • Controller Position• Serial Number • Host Board





2. Under Tasks, click Information.

3. In System Information, click the Status tab.

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6System Maintenance 6


• Replacing Controller Modules, page 113

• Replacing Memory Modules, page 115

• Replacing Cache Backup Modules, page 116

• Replacing Power Supply Units, page 118

• Replacing Cooling Modules, page 120

• Replacing Hard Drives, page 122

Replacing Controller Modules

Use the following procedure to replace a RAID controller module.

Do not mix controller modules from different models. Each controller has a unique ID which is applied to host port names. As the result, you may encounter SAN problems with identical port names on multiple systems.

Before you replace the controller(s), export and save the NVRAM data using the LCD panel, follow the illustration below:




To replace a controller

1. Prepare a clean, static-free surface on which to place the controller.

2. Shut down all system applications.

3. Stop all I/O access to the system and make sure all cached writes have been distributed to disk drives using the firmware's Main Menu > System Functions > Shutdown controller function.

4. Shut down the system and turn off the power switches and unplug the power cords from the power supply units.

5. Disconnect all cables connected to the controller module.

6. Loosen the retention screw that secures the controller module's ejection levers.

7. Push the ejection levers downward. The controller module will automatically ease out of the controller module bay.

8. Insert the new controller module into the module bay. Carefully push the controller until you feel the board edge connectors engage the backplane, and then push the ejection levers upward.

9. Tighten the retention screw on the ejection levers.

10. Reattach all the cables to the controller module.

11. Turn on the system.

12. Check system message on the LCD screen or firmware menu-driven utility and check the Power LEDs. When the replacement controller is successfully brought online, the Power LEDs will appear solid green.

System Maintenance | 115

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13. Restore the NVRAM data by doing one of the following:

• Use the "Restore NVRAM from Disks "or "Restore NVRAM from Files" function in the firmware to restore ID/LUN mapping.

or

• Use the LCD panel to restore ID/LUN mapping settings (refer to the illustration below).

Replacing Memory Modules

The RAID controller comes with pre-installed dynamic random access memory (DRAM) modules. You can upgrade the memory modules or replace them as necessary. Contact your system vendor for a list of compatible DRAM modules.

Note Reusing a DRAM module removed from a failed controller is not recommended unless you have a similar RAID system to test its integrity.

To replace a dual in-line memory module (DIMM)

1. Remove the controller module (see Replacing Controller Modules, page 113).

2. Remove the BBU module (see Replacing Cache Backup Modules, page 116).


Removing BBU Module Removing DIMM from Socket



3. Wait for one minute for the remaining electricity on the main board to dissipate.

4. Push down on the clips on either side of the DIMM socket to eject the DIMM.

5. Install the replacement DIMM into the DIMM socket.

a. Make sure the side clips are in the open positions.

b. Align the DIMM with the socket, and then firmly push the DIMM into the socket. The side clips will close automatically and secure the DIMM in the socket.

6. Reinstall the BBU module (see Replacing Cache Backup Modules, page 116).

7. Reinstall the controller module (see Replacing Controller Modules, page 113).

Replacing Cache Backup Modules

The cache backup module (CBM) consists of a battery backup unit (BBU) and a flash backup module (FBM). The CBM can sustain and transfer cached data to a flash backup module in the event of a power outage or in the unlikely event of both PSUs failing. A CBM (BBU+FBM) is optional for single controller systems.

The following components can be upgraded or replaced:

• Battery backup unit: In the event of a power failure, the BBU can help store/save cached data in the DRAM module for up to 72 hours.

• Battery backup unit + flash backup module: In the event of a power failure, the combination of BBU+FBM (non-volatile flash storage) can store data indefinitely.

Note The flash backup module is not user serviceable.

Battery Backup Unit Fault Conditions and Precautions

If a battery backup unit leaks, gives off a bad odor, generates heat, becomes discolored or deformed, or in any way appears abnormal during use, recharging, or storage, immediately remove it from the system and stop using it.


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Conditions that could trigger a BBU fault include the following:

• The temperature sensor on the system's charger circuit reports a temperature reading exceeding the pre-set threshold. The charger circuits will enter a low power and self-protection state.

• A BBU module has been charged for over 12 hours. A timer is embedded with the charger. When this occurs, the charger will enter a timer fault state. Charging will resume automatically after you remove/reinstall the BBU module or reset the system.

Follow these precautions when you install a BBU:

• Use the replacement BBU supplied by your distributor. Use of other battery cells will void your warranty.

• Dispose of used BBUs at an authorized battery disposal site only.

• Do not place a BBU near a heat source.

• Do not immerse the BBU in water or expose it to liquids.

• Do not disassemble or modify the BBU.

• Do not pierce the BBU with a sharp object, strike it with a hammer, exert pressure on it, or throw it.

Replacing a Battery Backup Unit

To replace a backup battery unit

1. Remove the RAID controller from the enclosure.

a. Loosen the screws under the two ejection levers.

b. Push the ejection levers downwards to release the controller from the module slot. The controller should slide out easily.

2. Place the controller on a clean, static-free surface. Take care to hold the controller only by its metal canister and avoid touching the circuit board or connector pins.

3. Remove the four screws located on the sides of the controller (1), and then remove the top cover.

4. Remove the BBU (2). For type II controller models, unplug the BBU power connector, and then remove the screws securing the BBU to the top cover.

5. Install the replacement BBU. For type II controller models, attach the new backup battery unit to the underside of the top cover using the screws removed in step 4.



6. Insert the back end of the battery backup unit into the controller (1), and then, if applicable, connect the backup battery unit power cable to the controller (2).

7. Secure the cover to the controller using the four screws removed previously (3).

8. Replace the controller in the enclosure.

a. Slide the controller into the empty module slot until you start to feel the contact resistance, use slightly more force and then push the two ejection levers upwards.

b. Tighten the retention screws under the ejection levers to secure the controller in place.

Note A new or replaced battery backup unit takes at least 12 hours to charge to its full capacity. If the cause of a failure cannot be determined even after the battery backup unit is replaced, contact your system vendor. The life expectancy of a battery backup unit is 3 years.

Replacing Power Supply Units

The power supply units (PSUs) are configured in a redundant configuration with each PSU housed in a robust steel canister.

A problem with a PSU is indicated when the PSU status LEDs change to solid red, an alarm sounds, and a notification message appears in the firmware utility. Although the system can operate with a failed PSU, it is not recommended to run the system with a failed PSU for an extended period of time. The failed redundant PSU should be replaced as soon as possible.

Use the following procedures to replace a failed PSU.

To replace a 2U or 3U power supply unit

1. Shut down the system, turn off the PSU/cooling module, and disconnect the power cord.

2. Loosen the retention screw that secures the extraction handle to the enclosure (see illustration).

3. Remove the PSU/cooling module from the enclosure.

a. Grasp the extraction handle and pull it upwards to disconnect the PSU/cooling module from the backplane connectors.

b. Using your other hand to support its weight, gently pull the PSU/cooling module out of the enclosure.


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4. Install the replacement PSU/cooling module.

a. Make sure the extraction handle (1) is held at its highest position so that the saddle notches on the sides of the handle can snap onto the metal anchor pins (2) on the interior walls of the PSU slot.

b. Push the PSU/cooling module into the enclosure (3). When you feel the contact resistance, use slightly more force to engage the backend connectors.

c. Push the handle downwards to secure the module.

5. Tighten the retention screw that secures the extraction handle to the enclosure.

6. Reconnect the power cord and turn on the PSU/cooling module.



To replace a 4U RAID system PSU

1. Disconnect the power cord from the failed PSU.

2. Loosen the retention screw(s) that secures the extraction handle to the enclosure.

3. Remove the PSU from the enclosure.

a. Push the extraction handle (1) downwards. The extraction handle should gracefully disconnect the PSU from the backplane connectors.

b. Using your other hand to support its weight, gently pull the PSU out of the enclosure.

4. Install the replacement PSU.

a. Make sure the extraction handle (1) is held at its lowest position so that the saddle notches on the sides of the handle can snap onto the metal anchor pins (2) on the interior walls of the PSU slot.

b. Push the PSU into the enclosure.

c. When you feel the contact resistance, pull the handle upwards to secure the PSU.


6. Connect the power cord to the PSU and secure the connection using the supplied cable clamp.

Replacing Cooling Modules

In 2U and 3U RAID systems, the cooling modules are built into the power supply unit (PSU). In 4U systems, the cooling modules may be standalone or built into the PSU.

A problem with the cooling module is indicated when the cooling module status LEDs (located on the module itself) change to solid red, an alarm sounds, and a notification message appears in the firmware utility.

Use the following procedures to replace a faulty cooling module. To prevent prolonged disruption to the system airflow, it is recommended that you complete the cooling module replacement within 5 minutes.


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To replace a a 2U or 3U cooling module

1. Shut down the system, turn off the PSU/cooling module, and disconnect the power cord.

2. Loosen the retention screw that secures the extraction handle to the enclosure (see illustration).

3. Remove the PSU/cooling module from the enclosure.

a. Grasp the extraction handle and pull it upwards to disconnect the PSU/cooling module from the backplane connectors.

b. Using your other hand to support its weight, gently pull the PSU/cooling module out of the enclosure.

4. Insert the replacement PSU/cooling module.

a. Make sure the extraction handle (1) is held at its highest position so that the saddle notches on the sides of the handle can snap onto the metal anchor pins (2) on the interior walls of the PSU slot.

b. Push the PSU/cooling module into the enclosure (3). When you feel the contact resistance, use slightly more force to engage the backend connectors.

c. Push the handle downwards to secure the module.


6. Reconnect the power cord and turn on the PSU/cooling module.

To replace a 4U RAID system cooling module

1. Grasp the cooling module’s extraction handle, and then, while pushing the retention latch to the side, pull the module out of the enclosure.

2. Install the replacement module by pushing it gently into the module bay. You may need to push the retention latch sideways (just as when you were removing it) while installing the replacement module. When fully inserted, the retention latch will hold the module in place.



Replacing Hard Drives

Ensure that you have a replacement hard drive on hand before removing a faulty hard drive. Do not leave the drive tray open for an extended period of time or the internal airflow will be disrupted and the system may overheat. Handle hard drives with extreme care. Carry them only by the edges and avoid touching their interface connectors. Observe ESD precautions when replacing hard drives.

To replace a hard drive

1. Identify the drive bay you want to access. Use the firmware utility or the LED on the drive tray to identify faulty hard drive(s). The drive bays are numbered from left to right and from top to bottom.

2. Unlock the drive tray bezel. Use a small flat-blade screwdriver to turn the bezel lock from lock to the unlock position.

3. Press the release button to open the bezel. The spring handle pops out.


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4. Pull the drive tray out of the enclosure about 1 inch. Wait at least 30 seconds for the disk drive to spin down, and then gently remove the drive tray from the enclosure.

5. Remove the four retention screws securing the hard drive to the drive tray and remove the hard drive.

6. Place the new hard drive in the drive tray and replace the four retention screws.

7. Replace the drive tray in the enclosure.

8. When the drive tray is fully inserted, close the front bezel and use a small flat-blade screwdriver to turn the bezel lock from unlock to lock position. Do not push the bezel lock when turning the screwdriver or the spring handle will pop out again.

CAUTION Never leave the bezel lock unlocked or the RAID controller may treat it as a faulty drive.

9. Ensure that no drive errors are still being reported.

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ATechnical Specifications A

Specification 12-Bay Subsystems 16-Bay Subsystems 24-Bay Subsystems

Available Configurations RAID and JBOD – 2U RAID and JBOD – 3U RAID only – 4U

Voltage 100–240 VAC auto-ranging 100–240 VAC auto-ranging 100–240 VAC auto-ranging

Current (maximum, each supply)

10 A @ 100 VAC or 5 A @ 240 VAC

10 A @ 100 VAC or 5 A @ 240 VAC

8 A @ 100 VAC or 4 A @ 240 VAC

Power ConsumptionIdle: 230 WBusy: 245 W

Idle: 345 WBusy: 367 W

Idle: 409 WBusy: 434 W

Power Supply

Dual 530 W, 100–240 VAC auto-ranging, 47–63 Hz, dual hot swap and redundant with PFC, N+1 design

Dual 530 W, 100–240 VAC auto-ranging, 47–63 Hz, dual hot swap and redundant with PFC, N+1 design

Triple 405 W, 100–240 VAC auto-ranging, 50–60 Hz, triple hot swap and redundant with PFC, N+1 design

Temperature32° to 104°F (0° to 40°C) operational

–40° to 140°F (–40° to 60°C) non-operational

Relative Humidity 5 to 95% (non-condensing, operating and non-operating)

Vibration

(Random)Operating: 5 to 500 Hz, 0.25 Grms, X/Y/Z, 30 min

Non-operating: 5 to 500 Hz, 1.0 Grms, X/Y/Z, 30 min

(Sine)Operating: 5 to 500 Hz, 0.2 Grms, X/Y/Z Sine, 1hr/sweep

Non-operating: 5 to 500 Hz, 1.0 Grms, X/Y/Z Sine, 1hr/sweep

Dimensions (H×W×D)3.5 × 17.5 × 20.2 in.(8.8 × 44.6 × 51.4 cm)

5.1 × 17.5 × 20.2 in.(13.0 × 44.5 × 51.4 cm)

6.8 × 18.9 × 21.4 in.(17.4 × 48.1 × 54.4 cm)

Net Weight

39.9 lb (18.1 kg) without drives,53.1 lb (24.1 kg) with 12 drives,assuming 1.1 lb (0.5 kg) perdrive

47.75 lb (21.66 kg) without drives, 65.39 lb (29.66 kg) with 16 drives, assuming 1.1 lb (0.5 kg) per drive

60.49 lb (27.44 kg) without drives, 86.95 lb (39.44 kg) with 24 drives, assuming 1.1 lb (0.5 kg) per drive

Gross Weight (incl. carton) 66 lb (30 kg) without drives 82.7 lb (37.5 kg) without drives 99.2 lb (45 kg) without drives

Emissions FCC Subpart 15B, Class A

Safety UL/CSA 60950-1

© 2015 Honeywell International Inc. All rights reserved. No part of this publication may be reproduced by any means without written permission from Honeywell. The information in this publication is believed to be accurate in all respects. However, Honeywell cannot assume responsibility for any consequences resulting from the use thereof. The information contained herein is subject to change without notice. Revisions or new editions to this publication may be issued to incorporate such changes.

Document 800-16981 – Rev B – 11/2015

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