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DD880 and DD880g Hardware Overview

Backup Recovery Systems DivisionData Domain LLC.2421 Mission College Boulevard, Santa Clara, CA 95054866-WE-DDUPE; 408-980-4800775-0130-0005 Revision AMarch 4, 2011

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DD880 and DD880g Hardware Overview 3

DD880 and DD880g Hardware Overview

This document describes the hardware components of DD880 and DD880g systems.

This document covers the topics shown in the following table.

Related Documentation Page 4

System Features Page 5

Storage Capacity Page 6

Front Control Panel Page 7

Back Panel Page 8

Internal System Components Page 9

PCI Cards and Slot Assignments Page 9

4 DD880 and DD880g Hardware Overview

Related DocumentationThe Documentation page at https://my.datadomain.com/documentation provides access to three categories of documents that are related to use of Data Domain products:

• End user documents, under Product Documentation.

• Documents about how to integrate Data Domain systems with third party backup applications, under Integration Documentation.

• Matrices that show which components are compatible with each other, under Compatibility Matrices.

View Data Domain documents

1. Log into the support portal at: https://my.datadomain.com/documentation.

2. To view user documents, click Product Documentation and then perform the following steps:

a. Select the Data Domain model from the Platform list and click View.

b. On the row for the correct Data Domain operating system (DD OS) version, click View under Documentation.

c. Click the desired title.

3. To view integration-related documents, perform the following steps:

a. Click Integration Documentation.

b. Select the vendor from the Vendor menu.

c. Select the desired title from the list and click View.

4. To view compatibility matrices, perform the following steps.

a. Click Compatibility Matrices.

b. Select the desired title from Product menu and click View.

https://mydatadomain.com/documentation

https://mydatadomain.com/documentation


System FeaturesTable 1 summarizes the DD880 and DD880g system features:

Table 1: DD880 and DD880g Features

Feature DD880 and DD880g

Rack Height 4U, supported in four-post racks only

NVRAM Two 1-GB battery-backed NVRAM cards for data integrity during a power outage (total of 2048 MB)

Power 1 + 1 redundant, hot swap power

Fans Redundant, 8

Motherboard I/O Two 1000/100/10 copper Ethernet

PCIe Slots Seven PCIe FH slots. See “PCI Cards and Slot Assignments” on page 9.

Memory For systems with 48 GB of memory installed:• DD880 supports up to six ES20 shelves, any combination of

ES20-32 TB (requires DD OS 4.9 or later), ES20-16 TB, and ES20-8 TB shelves, adding up to 96 TB.

• DD880g supports 71.57 TB of external usable capacity.

For systems with 64 GB of memory running DD OS 4.8 or later: • DD880 with a third SAS card installed supports up to twelve ES20

shelves, using any combination of ES20-32 TB (requires DD OS 4.9 or later), ES20-16 TB, and ES20-8 TB shelves, adding up to 192 TB.

• DD880g supports 145 TB of external usable capacity.

Slide Rails Slide Rail Kit for DD880, DD880g included with system. Adjustablebetween 24 - 36 in. (60.9 - 76.2 cm). Available as spare underP/N X-DD8-URAIL.

Processors Four sockets, each with multi-core processors


Storage CapacityTable 2 lists the capacities of the DD880 and DD880g. Data Domain system internal indexes and other product components use variable amounts of storage, depending on the type of data and the sizes of files. If you send different data sets to otherwise identical systems, one system may, over time, have room for more or less actual backup data than another.

Note: Data Domain system commands compute and display amounts of disk space or data as decimal multiples of certain powers of two (210, 220, 230, and so forth). For example, 7 GiB of disk space = 7 x 230 bytes = 7 x 1,073,741,824 bytes. Data Domain refers to this process as Base 2 calculation.

Note: For information about the Data Domain ES20 expansion shelf, see the separate document called Data Domain Expansion Shelf Hardware Guide.

Table 2: DD880 and DD880g System Capacities

System/InstalledMemory

Internal Disks

Raw Storage (Base 10)

Data Storage Space (Base 2 Calculation)

Data Storage Space (Base 10Calculation)

External Storage

DD880 (2 SAS cards)48 GB

2.5 in. SATA4 @ 300GNo User Data

96 TB (external)

64.5 TiB 70.9 TB Up to a maximum of six shelves, either ES20-32 TB (requires DD OS 4.9 or later), ES20-16 TB, or ES20-8 TB, or any combination up to 96 TB of raw capacity.

DD880 (3 SAS cards)

64 GB1


192 TB (external)

129.6 TiB 142.5 TB Up to a maximum of twelve shelves, either ES20-32 TB (requires DD OS 4.9 or later), ES20-16 TB, or ES20-8 TB, or any combination up to 192 TB of raw capacity.

DD880g(2 FC cards)48 GB


71.41 TB (external third party)

64.9 TiB 71.36 TB Third-party storage

DD880g(2 FC cards)

64 GB2


143.4 TB 3

152 TB 4

(external third party)

130 TiB 3

129.7 TiB 4143 TB 3

142.6 TB 4Third-party storage

1. DD880 with three SAS cards and 64 GB of memory requires DD OS 4.8 or later.

2. DD880g with 64 GB memory requires DD OS 4.8 or later.

3. RAID on LUN is disabled.

4. RAID on LUN is enabled.


Front Control PanelThe control panel is at the left edge of the front panel (see Figure 1).

Figure 1: Control Panel Switches and LED Indicators

The control panel contains the following switches, from left to right:

The front of the control panel contains the following LED indicators, from left to right:

System Reset Resets the hardware and firmware. Use a ballpoint pen to activate this button.

Power Press to power on the system. Never shut down the system by pressing the Power button. Instead, use the system poweroff command to shut down the system.

System ID Lights blue LED front and rear to identify the chassis in a stack. Mutes audible alarm, if active.

Hard DriveActivity

Blinking green: Drive activeAmber: Drive fault

LANs 1 and 2 Blinking green: Active

Status Steady green: GoodBlinking green or amber: WarningSolid amber: Critical error

Power Steady green: power

System ID Solid blue: ID button has been pressed


Back PanelFigure 2 shows the hardware features on the back panel.

Figure 2: Back Panel

A sticker near the Ethernet port connectors (not shown above) shows the system MAC address.

The Ethernet ports are named in one of the following ways:

• eth0 and eth1 (legacy port naming)

• eth0a and eth0b (slot-based port naming)

For more information about port mapping, see “Ethernet Card Options and Port Naming” on page 11.

Ethernet Ports


Internal System ComponentsFigure 3 shows the system with the top cover removed.

Figure 3: Top View (Cover Removed)

PCI Cards and Slot AssignmentsTable 3 and Table 4 show the PCI card slot assignments for the systems. See Figure 2 for a view of the slot positions on the back panel. Slot 7 is on the left, when viewed from the rear of the chassis.

Note: Three SAS cards are supported for DD OS 4.8 and later.

Table 3: DD880 PCI Card Slot Assignments

Slot 7PCI-e x8

Slot 6PCI-e x8

Slot 5PCI-e x8

Slot 4PCI-e x8

Slot 3PCI-e x48

Slot 2PCI-e x4

Slot 1PCI-e x4

NVRAM 2 NVRAM 1 Ethernet 1,VTL 2,or empty

VTL 1,Ethernet 2,or empty

DD OS 4.7: Reserved

DD OS 4.8 and later:SAS HBA 3

SAS HBA 1

DD OS 4.7 and later

SAS HBA 2

DD OS 4.7 and later


All systems have two 1-GB NVRAM PCIe cards.

A DD880 system can have two or three dual-port Serial Attached SCSI (SAS) HBA PCIe cards for expansion shelf connectivity. DD OS 4.8 supports three SAS HBA cards, but also requires 64 GB of memory to support maximum system capacity.

Each SAS HBA port accepts a miniSAS connector.

A DD880g system has two dual-port Fibre Channel PCIe HBA cards for third-party storage connectivity. Each port accepts an LC connector.

Both systems have two slots available for optional Ethernet NIC and VTL HBA cards. The optional VTL feature requires at least one VTL HBA card. Depending on your needs, you can leave these slots empty, install two cards of either type, or install one card of each type.

DD OS versions 4.7 and 4.8 support 4-Gb Fiber Channel PCIe HBA cards for use as Gateway FC cards and VTL cards. DD OS version 4.9 and later includes support for both 4-Gb Fibre Channel cards and 8-Gb Fibre Channel PCIe HBA cards for use as Gateway FC cards and VTL cards.

Note: Mixing 4-Gb and 8-Gb Fiber Channel PCIe cards in the same system is not supported.

VTL Card Option

The VTL card is a dual-port Fibre Channel PCIe HBA card.

Table 4: DD880g PCI Card Slot Assignments

Slot 7PCI-e x8

Slot 6PCI-e x8

Slot 5PCI-e x8

Slot 4PCI-e x8

Slot 3PCI-e x48

Slot 2PCI-e x4

Slot 1PCI-e x4

NVRAM 2 NVRAM 1 Ethernet 1,VTL 2,or empty

VTL 1,Ethernet 2,or empty

empty FC HBA 1 FC HBA 2


Ethernet Card Options and Port Naming

The available Ethernet NIC cards are:

• Dual port copper 1 Gb (1000 Base-T) Ethernet PCIe NIC with RJ-45 connectors

• Dual port optical 1 Gb (1000 Base-SX) multi-mode fiber Ethernet PCIe NIC with LC connectors

• Dual port copper 10 Gb (10GBase-CX4) Ethernet PCIe NIC with CX4 connectors

• Single port optical 10 Gb (10GBase-SX) multi-mode fiber (850 nm) Ethernet PCIe NIC with an LC connector

• Dual-port copper 10-Gb Ethernet PCIe NIC with SFP+ connectors (requires DD OS 4.9 or later)

• Dual-port optical 10-Gb Ethernet PCIe NIC with LC connectors (requires DD OS 4.9 or later)

Note: Two of the same card type can be installed, or a combination of two different card types. Certain restrictions apply to combinations of the 10-Gb Ethernet cards in a system. The following combinations are supported:

• Dual-port copper 10-Gb Ethernet card with SFP+ connectors plus Dual-port optical 10-Gb Ethernet card with LC connectors

Both cards require DD OS 4.9 or later.

• Dual-port copper 10-Gb Ethernet card with CX4 connectorsplusSingle-port optical 10-Gb (10GBase-SX) Ethernet card with an LC connector.

Other combinations of 10-Gb Ethernet cards are not supported.

The Ethernet ports on the system motherboard are named in one of the following ways:

• eth0 and eth1 (legacy port naming)

• eth0a and eth0b (slot-based port naming)

Legacy port naming is used on systems that are running DD OS 4.8 and earlier software versions. In addition, systems that are upgraded to DD OS 4.9 will continue to use legacy port naming unless you explicitly configure slot-based port naming after the software upgrade.

Slot-based port naming occurs by default in systems with a fresh installation of DD OS 4.9, or in new systems that are shipped with DD OS 4.9 installed. With slot-based port naming, the Ethernet ports on installed optional Ethernet cards are identified by a combination of their slot number and port letter. The first port in a slot (at the top) is labeled a and the second port is b. For example, a dual-port copper card in Slot 5 has the Ethernet port names eth5a and eth5b.See the “Network Management” chapter in the Data Domain Operating System Administration Guide for help configuring the Ethernet interfaces for failover and aggregation.