dp&r in zos environment tape, tape libraries and ts7700 ...gsebelux.com/system/files/an update...

© 2013 IBM Corporation

IBM System Storage™

DP&R in zOS Environment

Tape, Tape Libraries and TS7700

IBMs Virtual Tape Solution for Mainframe as availabletoday

Walter Casteels

Based on input from ATS Europe

June, 12, 2013


IBM System Storage

Disclaimers

Copyright© 2012 by International Business Machines Corporation.

No part of this document may be reproduced or transmitted in any form without written permission from IBM Corporation.

The performance data contained herein were obtained in a controlled, isolated environment. Results obtained in other operatingenvironments may vary significantly. While IBM has reviewed each item for accuracy in a specific situation, there is no guarantee thatthe same or similar results will be obtained elsewhere. These values do not constitute a guarantee of performance. The use of thisinformation or the implementation of any of the techniques discussed herein is a customer responsibility and depends on thecustomer's ability to evaluate and integrate them into their operating environment. Customers attempting to adapt these techniques totheir own environments do so at their own risk.

Product data has been reviewed for accuracy as of the date of initial publication. Product data is subject to change without notice.This information could include technical inaccuracies or typographical errors. IBM may make improvements and/or changes in theproduct(s) and/or programs(s) at any time without notice. Any statements regarding IBM's future direction and intent are subject tochange or withdrawal without notice, and represent goals and objectives only

References in this document to IBM products, programs, or services does not imply that IBM intends to make such products, programsor services available in all countries in which IBM operates or does business. Any reference to an IBM Program Product in thisdocument is not intended to state or imply that only that program product may be used. Any functionally equivalent program, that doesnot infringe IBM's intellectually property rights, may be used instead. It is the user's responsibility to evaluate and verify the operationof any on-IBM product, program or service.


IBM System Storage

Disclaimers (continued)

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IBM shall have no responsibility to update this information. IBM products are warranted according to the terms and conditions of theagreements (e.g. IBM Customer Agreement, Statement of Limited Warranty, International Program License Agreement, etc.) underwhich they are provided. IBM is not responsible for the performance or interoperability of any non-IBM products discussed herein.

Information concerning non-IBM products was obtained from the suppliers of those products, their published announcements or otherpublicly available sources. IBM has not tested those products in connection with this publication and cannot confirm the accuracy ofperformance, compatibility or any other claims related to non-IBM products. Questions on the capabilities of non-IBM products shouldbe addressed to the suppliers of those products.

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IBM System Storage

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The following terms are trademarks or registered trademarks of the IBM Corporation in either the United States, other countries orboth.

IBM, Power Systems, System Storage, TotalStorage, System i, System p, System x, System z, Virtualization Engine z/OS, z/VM, VM/ESA, OS/390, AIX, DFSMS/MVS, OS/2, OS/400, i5, FICON, ESCON, Tivoli VSE/ESA, TPF, DFSMSdfp, DFSMSdss, DFSMShsm, DFSMSrmm

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Other company, product, and service names mentioned may be trademarks or registered trademarks of their respective companies.


IBM System Storage

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* All other products may be trademarks or registered trademarks of their respective companies.

Notes:Performance is in Internal Throughput Rate (ITR) ratio based on measurements and projections using standard IBM benchmarks in a controlled environment. The actual throughput thatany user will experience will vary depending upon considerations such as the amount of multiprogramming in the user's job stream, the I/O configuration, the storage configuration, andthe workload processed. Therefore, no assurance can be given that an individual user will achieve throughput improvements equivalent to the performance ratios stated here.

IBM hardware products are manufactured from new parts, or new and serviceable used parts. Regardless, our warranty terms apply.

All customer examples cited or described in this presentation are presented as illustrations of the manner in which some customers have used IBM products and the results they mayhave achieved. Actual environmental costs and performance characteristics will vary depending on individual customer configurations and conditions.

This publication was produced in the United States. IBM may not offer the products, services or features discussed in this document in other countries, and the information may besubject to change without notice. Consult your local IBM business contact for information on the product or services available in your area.

All statements regarding IBM's future direction and intent are subject to change or withdrawal without notice, and represent goals and objectives only.

Information about non-IBM products is obtained from the manufacturers of those products or their published announcements. IBM has not tested those products and cannot confirm theperformance, compatibility, or any other claims related to non-IBM products. Questions on the capabilities of non-IBM products should be addressed to the suppliers of those products.

Prices subject to change without notice. Contact your IBM representative or Business Partner for the most current pricing in your geography.

This presentation and the claims outlined in it were reviewed for compliance with US law. Adaptations of these claims for use in other geographies must be reviewed by the local countrycounsel for compliance with local laws.


IBM System Storage

NOTICES AND DISCLAIMERSCopyright © 2013 by International Business Machines Corporation. All rights reserved.

No part of this document may be reproduced or transmitted in any form without written permission from IBM Corporation.

Product data has been reviewed for accuracy as of the date of initial publication. Product data is subject to change without notice. Thisdocument could include technical inaccuracies or typographical errors. IBM may make improvements and/or changes in the product(s) and/orprogram(s) described herein at any time without notice. Any statements regarding IBM's future direction and intent are subject to change orwithdrawal without notice, and represent goals and objectives only. References in this document to IBM products, programs, or services doesnot imply that IBM intends to make such products, programs or services available in all countries in which IBM operates or does business. Anyreference to an IBM Program Product in this document is not intended to state or imply that only that program product may be used. Anyfunctionally equivalent program, that does not infringe IBM's intellectually property rights, may be used instead.

THE INFORMATION PROVIDED IN THIS DOCUMENT IS DISTRIBUTED "AS IS" WITHOUT ANY WARRANTY, EITHER OR IMPLIED. IBMLY DISCLAIMS ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT. IBMshall have no responsibility to update this information. IBM products are warranted, if at all, according to the terms and conditions of theagreements (e.g., IBM Customer Agreement, Statement of Limited Warranty, International Program License Agreement, etc.) under which theyare provided. Information concerning non-IBM products was obtained from the suppliers of those products, their published announcements orother publicly available sources. IBM has not tested those products in connection with this publication and cannot confirm the accuracy ofperformance, compatibility or any other claims related to non-IBM products. IBM makes no representations or warranties, ed or implied,regarding non-IBM products and services.

The provision of the information contained herein is not intended to, and does not, grant any right or license under any IBM patents orcopyrights. Inquiries regarding patent or copyright licenses should be made, in writing, to:

IBM Director of LicensingIBM CorporationNorth Castle DriveArmonk, NY 1 0504- 785U.S.A.


IBM System Storage

Agenda

1. Introduction of the Mainframe Tape Familiy• TS7700, TS3500, Native Drive Controller C07,

TS11402. Introduction to the TS7700 Grid Concept3. Short overview of possible configurations "Mix and

Match„4. Replication concepts and options5. Workload management in the TS77006. Availability / Business Continuity Aspects7. Manageability8. Scaleability9. Security10.Technology continuity


IBM System Storage

IBM Tape Systems Portfolio

Entry Midrange Enterprise

LTO 4, 5 & 6TS1140(3592)

TS3200(3573)TS3100

(3573)

TS3310(3576)

TS7700 mainframe(3957)

Tape

aut

omat

ion

Tape

virt

ualiz

atio

n

TS3500(3584)

Tape

Driv

es

LTO 4, 5 & 6 HH LTO Media

3592 Media

TS2900(3572)

TS7620 ProtecTIERDeduplication

Appliances 6, 12TByte useable

TS7650ProtecTIER

Gateway

TS7620 ProtecTIERDeduplication

Appliances 23, 35TByte useable


IBM System Storage

IBM Enterprise Tape Systems Portfolio

Entry

TS1140(3592)

TS7700 Virtualization Engine familyFor the mainframe

(3957)

Tapeautomation

Tapevirtualization

TS3500 Tape Libraries andshuttle interconnections

(3584)

Tape Drives andTape Controllers

3592 Media 3592-C07


IBM System Storage

What is the IBM Virtualization Engine TS7700*? The IBM Virtualization Engine TS770 family is virtual tape storage for System z

data with interconnection for up to 6 geographically placed systems called“clusters” in a redundant network configuration called a “Grid” which providesenhanced availability and simplified business continuance.

The IBM TS7700 and its Grid architecture is unique, offering automated failover,replication and intermix of tapeless virtual tape (model TS7720) as well as amodel with tape (model TS7740) for enhanced data protection and automatedhierarchal storage management.

Suggested reading: Redbook “IBM Virtualization Engine TS7700”.

*Note: throughout this presentation, when “TS7700” is used, it implies the modelused can be either a TS7720 or TS7740


IBM System Storage

IBM Virtualization Engine™ TS7700 Fully integrated, tiered storage hierarchy of disk and tape

• TS7740 can help accelerate backups and restores by using a tieredhierarchy of disk and tape to make more efficient use of tape drives

• Supports from 1 TB up to 28 TB of cache per node (84TB @ 3:1 comp)• Supports 4 -16 backend TS1140

• TS7720 provides a cache-centric solution for frequently accessed data• Supports from 23.86 TB up to 624 TB per node

• Supports 256 virtual drives at each cluster and a maximum of4,000,000 virtual volumes (Default 1.000.000)

• Power 7 based Server Engines• 4 * 4 Gbit Ficon Attachment• Host throughput incrementals from 100 to 1000 Mb/s

Outstanding virtualization capabilities support dataprotection and retention

• Connect up to 6 nodes per Grid• Replication Options: Synchronous, “Rewind/Unload”, Deferred or No-Copy options• Selective Dual Copy in a single node (TS7740 only – Media protection)• Copy Export (TS7740 only)• Disaster Recovery Testing feature

• Suggested reading: white paper “IBM® Virtualization Engine™ TS7700Release 3.0 Performance White Paper”


IBM System Storage

TS7700 Virtualization Engine Solutions TS7720 Virtualization Engine

• Access-centric applications (image data, reportservers, critical backups, HSM ML2)

• Up to 624TB disk cache per system prior tocompression

• 1.87 PB with 3:1 compression

• AES 128bit Encryption• 3TB NL-SAS 7.2K RAID6

TS7740 Virtualization Engine• Cost-efficient applications (HSM, general backups,

master-in, master-out, GDGs, archive)• Up to 28TB disk cache per system prior to

compression• 84TB with 3:1 compression

• Over 24PB backend physical tape storage• 72PB with 3:1 compression

• AES 128bit Encryption (disk)• AES 256bit Encryption (tape)• 600GB SAS 10K RAID6

Drives/LibraryHosts

TS7740 Cluster

Hosts

TS7720 Cluster


IBM System Storage

TS7720 Virtualization Engine Configurations

23.86 TB

Minimum TS7720Configuration

CS9 - 3TB

Base Frame

TS7720 Cache Controller features:

• Two 8 Gbps Fibre Channel processor cards to the Power 7 ServerEngine

• Two battery backup units (one for each processor card)

• Two power supplies with embedded enclosure cooling units

• 12 DDMs, each with a storage capacity of 3TB, for a usable storagecapacity of 23.86 TB – Raid-6 protected

Configurations support one or twoTS7720 Virtualization Engine CacheControllers, one in the base frame, and one in the expansion frame.

–


IBM System Storage


Maximum TS7720Configuration

23.86 TB

Minimum TS7720Configuration

CS9 - 3TB

Base Frame

23.86 TB

24.0 TB

24.0 TB24.0 TB24.0 TB

24.0 TB24.0 TB

24.0 TB

24.0 TB24.0 TB

239.86 TB623.72 TB

383.86 TB

CS9 - 3TBXS9 - 3TBXS9 - 3TB

XS9 - 3TBXS9 - 3TBXS9 - 3TB


XS9 - 3TBXS9 - 3TB

Expansion Frame

XS9 - 3TBXS9 - 3TBXS9 - 3TBXS9 - 3TBXS9 - 3TB

CS9 - 3TBXS9 - 3TBXS9 - 3TBXS9 - 3TB

Base Frame


XS9 - 3TBXS9 - 3TB

XS9 - 3TB

23.86 TB

24.0 TB

24.0 TB24.0 TB24.0 TB

24.0 TB24.0 TB

24.0 TB

24.0 TB24.0 TB

24.0 TB24.0 TB24.0 TB24.0 TB24.0 TB

24.0 TB

Base frame minimum is one CS9 Cache Controller– Up to nine XS9 Cache Drawers can be added to the base frame - single drawer increment

Expansion frame minimum is one CS9 Cache Controller– Up to fifteen XS9 Cache Drawers can be added to the expansion frame - single drawer increment


IBM System Storage


CC9 – 600GBCX9 – 600GB

28 TB

TS7740 Frame

CX9 – 600GB 9.58 TB9.58 TB9.45 TB

• Frame has 9.45TB to 28 TB• 0, 1, or 2 CX9 Drawers

• Maximum of 28TB

Cache Controller model CS9 Features

•Two 8 Gbps Fibre Channel processor cards

• Two battery backup units (one for each processor card)


• 22 DDMs, each possessing 600 GB of storage capacity, for ausable capacity of 9.45 TB – Raid-6 protected

•Encryption Capable

Cache Drawer model 3956-CX9 features

• Two Fibre Channel processor cards


• 22 DDMs, each with 600 GB of storage capacity, for a total usablecapacity of 9.58 TB per drawer - Raid-6 protected


IBM System Storage

Tape is designed for efficiency…

Sources:1. “Top 10 Strategies for Surviving Unconstrained Data Growth,” Gartner Symposium Presentation, October 2010, slide 212 “In Search of the Long Term Archiving Solution – Tape Delivers Significant TCO Advantage over Disk”, The Clipper Group, Inc., December 2010.

Significantly reduced power, cooling, and space requirements Saves money

Price per TB is about 10% of Tier 2 disk1

Power consumption is about 1%, compared to hard disk2

Transportable Light weight, compact, crash-proof

Provides investment protection with scalability and media compatibility

Preserve data for up to 30 years on the same media

Stores up to 4 TBs of native data on one cartridge


IBM System Storage

IBM System Storage TS3500 Tape Library Enterprise class tape automation

• Supports highly scalable, automated data retention on tape utilizing IBM TS1100and 3592 and/or LTO Ultrium® families of tape drives

• Extreme scalability and capacity growing from 1 to 16 frames per library and fromone to 15 libraries per library complex using the TS3500 shuttle connector

• Up to 2.7EB* of automated, low cost storage under a single library image(including the shuttle connectivity)

– Dramatically improves floor space utilization and reduces storage cost per terabyte

Supports exceptional data protection• Optional second robotic accessor enhances data availability and reliability• Provides data security and regulatory compliance via support for tape drive

encryption and WORM cartridges

• TS7740 support• Multiple TS7740 can be installed in one TS3500

* Using TS1140 drives and 3:1 compression


IBM System Storage

TS3500 Tape Library Overview

Base frame(Model Lx3)

Service bay B

0 - 15 active expansion frames

A single library system includes:1 - 16 frames (plus two service bay frames)

1 - 192 LTO and/or 3592 tape drives

59 - 20,000 storage slots

Up to 180 PB* Storage Capacity

16 - 224 I/O slots (1 - 14 I/O Stations)255 virtual I/O slots per logical library

1- 2 accessors (robotics)

0 - 15 shuttle connections to other librarysystems

* Using TS1140 drives and media at 3:1 compression

Service bay A

0 - 15 shuttle connections


IBM System Storage

TS3500: Different Frames for your requirements

Secondaccessor withtwo grippersplus all controlelements

Extra I/Ostation

- Operator control panel andaccess door

- Cartridge accessor with twogrippers

- Remote Support Facility (callhome)

- 16 / 32 cartridge I/O station -- Enhanced Frame ControllerAssembly

Base Frameextras:

n.a.1000 slotswith 0-12drives

360-400cartridges with0 – 12 drives

237-260 slots with 16 I/O and0-12 drives

199-222 slots with 32 I/O and0-12 drives

Number ofcartridge slots

n.a.TS1140, TS1130, TS1120 and/or 3592 J1A drivesType of drives

0n.a.0 - 120 - 12Number ofDrives

HA-Feature-Service bay(optional)

S24(HD)

D23L23 Base FrameFrame:


IBM System Storage

Availability Characteristics of the TS3500

High Availability Library Power / Management / Robotics• Redundant drive and accessor power• Redundant AC power inputs• Redundant controller nodes• End-to-end control and data path failover• Optional second active accessor with library management node

– Each accessor operates independently in flexible zones– Support dynamic workload balancing across zones

Designed for concurrent maintenance• Hot swappable drives, power supplies, controller nodes, operator panel, and

accessors

Designed for concurrent upgrades• Non-disruptive drive and library firmware update• Non-disruptive configuration changes including transparent capacity on demand• Add physical capacity with less than one hour of outage


IBM System Storage

2nd generation of 3592 Tape Controller Power 710 Server Express

• 3.0 Ghz, 4-core processor• 8GB RAM

Library Manager Integration 2U Server 5U, Half Width I/O drawer. One to Four 8Gb FICON Host Attachment Supports TS1120, TS1130, and TS1140

• Up to 16 drives in a TS3500• Up to 12 drives in a rack configuration

Web User Interface SNMP audit logging for User and Service Interfaces LDAP support for User Interface Installed in 3952-F05 frame or in customer supplied rack Supports drives in TS3500 tape library or rack Must be installed in 3952-F05 for attachment to TS3500

3592-C07 Tape Control Unit


IBM System Storage

TS1140 Tape Drive Overview

4rd Generation of 3592 enterprise tape drive• Barium Ferrite media types with up to 4 TB native capacity

• Re-Writable and Write Once Read Many (WORM) cartridge at 4TB• Economy cartridge available at 500GB

• 250 MBps native drive data rate• Dual 8Gb fiber channel interfaces with 650 MB/s max compressed data rate• Supports data partitioning, data encryption and key management• Differentiated Media

– New media types usable at higher capacity on future drive generations– Media re-use of existing JB/JX media types with automatic Upformat support– 100 % factory tested media , improved physical durability and usage life

• MES upgrade for TS1130 available (Model Conversion) Attached for Mainframe Environments to

• TS7740• Native C06 / C07 Controllers

Supported in• IBM TS3500 tape libraries• IBM Rack


IBM System Storage

Introduction to the TS7700 Grid Concept The grid is a combination of 2, 3, 4, 5 or 6 clusters in a grid. The grid looks to the operating systems as “a single library (composite library)

with 256 up to 1536 virtual drives. They can be either homogenous (TS7720 only, TS7740 only), or heterogenous

(TS7720 and TS7740 together in a grid). The clusters are connected via a Grid network together (IP on Gbit Ethernet). At least one cluster needs to be attached to the hosts (for availability reason you

should connect more). However, also clusters with no Host attachment (in DRsites) may exists. Replication of the data can be done in different modes. Each cluster has one server engine, representing:

• I/O services (if a host attachment exists)• a Tape Volume Cache (TVC). If another TVC is more suitable in the grid, than the

cluster who is driving the I/O, remote mounts to another TVC in the grid may occur.

A logical volume is owned at a time only by one cluster in the grid. This conceptof ownership ensure the data integrity in case of failures and outages.


IBM System Storage

Example configuration

Host A

Site A / Campus

TS7720Cluster 0

TS7720Cluster 1

FICON

TS7740Cluster 3

WAN

Host CHost B

FICON

Site B / Campus

TS7740Cluster 2

Site C / Campus

FICON


IBM System Storage

Hybrid Grid – Native Tape, Less Tape or No Tape

Not one size fits all• Disk only solutions are optimal for primary data applications or applications

which need fast access times• Solutions tightly integrated with physical tape are best for archive and backup

data Hybrid grid is the best of both worlds

• Using Grid architecture, intermix disk only TS7720 solutions with disk/tapeTS7740 solutions

• Allows customer to configure how their data is managed in order to fully benefitfrom an intermixed configuration

TS7720 TS7740Whichone?

DISK ACCESS SPEED/POWER/COST TAPE ACCESS SPEED/POWER/COST

HSM ML2

ImageProcessing

Primary

Data

HSM Backup

ArchiveD

ata

Long TermRegulatoryRetention

Offsite Physical Copies


IBM System Storage

Prefer Remove (LRU Order)

Hybrid Intelligent Tape Integration

Drives/Library

TS7740 ClusterLAN/WAN

TS7720 clusters in a grid are designed to run at maximum capacityThrough policy management, data can be:

• Pinned – Reside in TS7720 disk cache indefinitely• Retained – Pinned for a duration of time since last access, then Keep or Remove• Prefer Kept or Removed – Two groups using LRU algorithm

Data is removed from TS7720 disk cache after validating data already exists on TS7740sAutomatic and nearly transparent integration of physical tape

• Aged or archive data naturally ends up on tape within TS7740s• Other workloads can be pinned or retained in cache for 100% cache hits on reads

TS7720 Cluster

Drives/Library

TS7740 Cluster

PinnedVolumes

RetainedVolumes

Prefer Keep (LRU Order)


IBM System Storage

Example: Two Cluster Grid – Design for High Availability and DR

Host

Site A – Site / Campus

TS7700 Cluster 0

FICON

WAN < 10 km

Site B – Site / Campus

Host

FICON

TS7700 Cluster 1


IBM System Storage

Replication concepts and options DFSMS policy managed replication

• Each volume, independent of where it is created, can have one to six copies within agrid

• Simply use your SMS ACS routines to determine which method is used at volumegranularity

• No dependency on Tape Management System pools For each cluster in the grid you specify on this management class level, the replication

option.• Synchronous Mode Copy: based on application, the data is written on specific sync points to the

synchronous cluster. You can only specify two cluster in the management class as Synchronous,regardless the amount of cluster in a grid. HSM-ML2 and Object Support are good candidates forsynchronous replication.

• “RUN”: At Rewind Unload Time of a logical volume it will be copied to the RUN clusters. When theRUN clusters have acknowledged that the data is in the cache, the RUN will be set to complete tothe operating system. This is also known as “immediate copy”.

• Deferred: The copy will be placed on a queue – and will be processed in a non-peak time.• No-Copy: The cluster get no copy at all

If – because of an issue - a copy can not be produced accordingly the replication option, theissue is reported and alarmed (“Degradation”) and the copy is sent to a Copy Queue (Sync-Deferred, Immed-Deffered).

Suggested reading: white paper “IBM® Virtualization Engine TS7700 Series Best Practices- Synchronous Mode Copy”


IBM System Storage

Example: Three Cluster Grid – Design for High Availability and DR

Host A

Site A – Site / Campus / Region / World Remote DR site

S RS

TS7720Cluster 0

TS7720Cluster 1

FICON

TS7740Cluster 2

WAN

DWDM, Channel Extension (optional)

Host(optional)Host B

FICON

BC

A

D

R RR

R DN

R NN

S RS

BC

A

D

R RR

R DN

N NR

S RS

BC

A

D

R RR

R DN

N RN


IBM System Storage

Configuration Example: Four cluster grid

Host

Site A – Site / Campus / Region

DS RS

TS7740Cluster 1

FICON

Site B – Site / Campus / Region

Host

FICON

DR DR

AB

RD RDCNR NND

DS RS

DR DR

AB

RD RDCRN NND

TS7720Cluster 0

DS RS

TS7740Cluster 3

DR DR

AB

RD RDCNN NRD

DS RS

DR DR

AB

RD RDCNN RND

TS7720Cluster 2


IBM System Storage

Pre- and Post Planning Phase Pre-Planning:

• Know your workload – and your requirements• Select the appropriate Grid design (Two-Cluster, Three Cluster or

more )• Sizing for Cache Sizes and Throughputs• Grid links selection

Post-Planning (some are optional, depending on your environment):• Gridlink and Automatic Ownership Takeover Manager (AOTM)

network planning• Workload distribution• Replication selection• Naming conventions• Security Planning: Encryption (Key Manager), LDAP, User and

Roles• Planning the logical partitioning for several LPARs/

Sysplex/Customer


IBM System Storage

Workload Management Capabilites:z/OS Scratch Allocation Assist

Extends R1.5 allocation assistance for scratch mountsUse Management Class to configure “Candidate Clusters” for scratch mountsz/OS will randomly choose a device among the “Candidate Clusters”If all “Candidate Clusters” are unavailable, any available cluster will be used instead

Direct new workloads to particular clustersDirect primary data such as DFSMShsm ML2 workload to TS7720sDirect backup/archive data to TS7740sExisting allocation assistance will be used for read access

Tape LibraryTS7740 Cluster

TS7720 Cluster

LAN/WAN

Tape Library

TS7740 ClusterArchive Workload

Primary Workload

This feature is offered on JES2 z/OS workloads only at this time


IBM System Storage

Workload Management Capabilites:z/OS Device Allocation Assist For private volumes

• Select a cluster which has the requested logical volume already in cache

• In a TS7720 and TS7740 two grid cluster, there is a high likelihood that theTS7720 is selected for the processing

• The TS7720 will not be selected, if• No online drives are available• The logical volume is not available in the TS7720 any more

• In both of these situations, the TS7740 would be chosen instead


IBM System Storage

Cache Management: Preference GroupWith Cache Management you can influence the content of your cache.

PG0: bad candidates for cachePG1: good candidates for cache

Available for TS7720 and TS7740

Controlled by Storage Class

Influence the pre-migration and migration orderPG0 – TS7740 (or Remove Preferred – TS7720 ) will be selected firstPG0 will be migrated from cache, even if there is no filling condition. Volume will be

selected on largest first.PG1 will be migrated only from cache, if space is needed, based on LRU.

Copies to a different cluster (only TS7740) can be treated either with thesame attributes or treated as PG0.

Recalled volumes (only TS7740) can be either treated with the originattribute or treated as PG0.

Suggested reading: white paper “IBM® Virtualization Engine TS7700 SeriesBest Practices - Cache Management in the TS7720”


IBM System Storage

Standard Cache Management Advanced Function CacheManagement

Space available forfrequently accessed

volumes

Space : LRU Algorithm

Copy : Priority / Size

Space available forinfrequently accessed

volumes

Space : LRU Algorithm

PG0

PG1

Copy : FIFO orderCopy : Second in FIFO order

Space : Delete First

Tape Volume Cache Management –TS7740 (continued)

The illustration below assumes 80 % of volumes created can be identifiedto the ACS routines as infrequently accessed


IBM System Storage

Cache Management: Expiration in Cache : Delete Expire

In “old” days, data on a tape was only deleted, when it was overwritten.

In an IBM virtual tape environment, you can decide, if you proceed with this behavior.

However, you could also choose that a logical volume will be deleted from the cachewhen it has expired.

You can select how long after the expiration the data is still kept in cache (or onbackend tape) before the deletion take place:

Default: 24 hoursMinimum: 1 hourMax: approx 144 weeks

To select an appropriate delete expire setting, please review your housekeepingprocesses.

Too long: your cache (or backend tape) is consumed by “outdated data” Too short: an error in the housekeeping process (manual, human) might result in data loss.


IBM System Storage

Availability / Business Continuity

Each component have redundant features

For critical workload, you should implement a High AvailabilityArchitecture (Two or more cluster grid)

In case of failures, the remaining clusters can take over the workload.

This has to be considered in design and definitions

Remote Mount IP Link Failover Improved remote read/write operations by utilizing alternate links in the event of path failure. Use redundant grid links for remote mounts for transparent failover If a failure occurs, the Failover path searches another IP link to continue the job, without stopping

or letting the host and customer realize it.


IBM System Storage

Ownership and Ownership Takeover Mode

Volume Ownership in a Grid configuration Each logical volume is owned by a TS7700 cluster

All changes to a volume are controlled by the owner

A TS7700 cluster must have ownership of a volume to execute a mount operation

Volume ownership is dynamically transferred between TS7700 clusters in a Grid configuration aspart of mount processing

Ownership Takeover Modes If a TS7700 cluster that has ownership of a logical volume is unavailable, the Automatic Ownership

Takeover Manager allows the available TS7700 cluster to take ownership away from theunavailable TS7700 cluster

The Ownership Takeover Manager uses the TS3000 System Console (TSSC) on each TS7700cluster to provide an independent method to check the status of a cluster

If a failure has been confirmed, one of the ownership takeover modes is enabled automatically– A default of Neither, Read or Write ownership is set by IBM Service

If the failure can not be confirmed, manual intervention is needed.


IBM System Storage

Copy Export – TS7740 Export function to support transfer of data for offsite disaster recovery

Exports a copy of selected data, leaving the primary copy in the TS7700

Incremental data export to allow regularly exports (only new data will beexported)

Copy exported physical volume continues to be managed by the sourceTS7700 Utilizes off site reclamation to free up previously exported tapes

Customer performed recovery process All copy exported data from a source TS7700 is recovered on an empty TS7700 Recovery options for test vs an actual disaster recovery

Operation in a Grid Configuration Executed on a specific TS7700 Logical volumes must have been copied to the TS7700 to be exported Recovery is to a standalone TS7700

Suggested reading: “IBM® Virtualization Engine TS7700 Series CopyExport Function User's Guide”


IBM System Storage

Copy Export – TS7740

Source TS7700

TVC

Pool 01 Pool 09

Production Host

Database

Production Site Recovery Site

Recovery TS7700

TVC

Pool 09

Database

Recovery Host

Dual copy of dataExport second copy w/DB

Load all exported volumes in libraryRestore DB from latest export volume


IBM System Storage

41

Disaster Recovery Testing

TS7700

•ProductionJobs

DR Test Host

TS7700

•DR Test Jobs

•Read all volumes

•Write only to DRVolumes

Full support of concurrent testing DR test host can run while production continues Production data continues to replicate during the

entire test

Production data protection Use TS7700 selective write protect to isolate DR test

volumes by category for full read/write access whileonly allowing read access to production volumes

Access production volumes which have beenreturned to scratch as private volumes within DRlocation

Production Host


IBM System Storage

Manageability

The TS7700 offers an extremely deep look inside the cluster andgrid.

Also it offers the ability, to take tuning action for your workload,but also for each cluster and the total Grid performance.

In addition, there are some tools available to assist you duringspecial tasks, like Grid Merge or Grid Unjoins.

To allow to gather all this information and take actions severalcommunication methods are available.

But – the most of them are not needed for a “Day to Daybusiness”.


IBM System Storage

Manageability

Data VEHSTATS /Accelerator*

LI REQ Commands

Data BVIR*

BVIR= Bulk Volume Retrieval Information*= my recommendation is to run them as daily scheduled jobs

VEHSTATS

Tapetools SMS commands

SMS Messages

Triggers

MI

Daily / Automated

Daily / Human

On Demand

Daily / AutomatedUsage BVIR

Usage Vehstats

On demand

On demand

Frequency

© 2013 IBM Corporation44

The TS770 Management Interface: Example Grid Summary


The TS7700 Management Interface: Example ClusterSummary


The TS7700 Management Interface: Example PerformanceOverview

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Cluster 3 Cache Throughput

Comp Host Write MiB/s Comp Host Read MiB/s Copy Out MiB/s Copy In MiB/s Pre-Mig MiB/s

Recall MiB/s Remote Read MiB/s Remote Write MiB/s Host IO MiB/s


SMS Command: Display of a composite library

D SMS,LIB(HYDRAG),DETAIL CBR1110I OAM library status: 053 TAPE LIB DEVICE TOT ONL AVL TOTAL EMPTY SCRTCH ON OP LIBRARY TYP TYPE DRV DRV DRV SLOTS SLOTS VOLS HYDRAG VCL 3957-V06 512 256 256 0 0 17263 Y Y ---------------------------------------------------------------------- MEDIA SCRATCH SCRATCH SCRATCH TYPE COUNT THRESHOLD CATEGORY MEDIA2 17263 0 0002 ---------------------------------------------------------------------- DISTRIBUTED LIBRARIES: HYDRAO HYDRAE ---------------------------------------------------------------------- LIBRARY ID: 00186 OPERATIONAL STATE: AUTOMATED ERROR CATEGORY SCRATCH COUNT: 0 CORRUPTED TOKEN VOLUME COUNT: 0 ---------------------------------------------------------------------- Library supports import/export. Library supports outboard policy management. Library supports logical WORM.

Suggested reading: „IBM® Virtualization Engine TS7700 Series z/OS HostCommand Line Request User's Guide”


SMS-Command: Display of a distributed library

D SMS,LIB(HYDRAO),DETAIL CBR1110I OAM library status: 058 TAPE LIB DEVICE TOT ONL AVL TOTAL EMPTY SCRTCH ON OP LIBRARY TYP TYPE DRV DRV DRV SLOTS SLOTS VOLS HYDRAO VDL 3957-V06 0 0 0 359 299 0 Y Y --------------------------------------------------------------------- COMPOSITE LIBRARY: HYDRAG --------------------------------------------------------------------- LIBRARY ID: 01482 OPERATIONAL STATE: AUTOMATED SCRATCH STACKED VOLUME COUNT: 49 PRIVATE STACKED VOLUME COUNT: 9 --------------------------------------------------------------------- Operator intervention required. Library supports import/export. Library supports outboard policy management. Library supports logical WORM. Convenience I/O station installed.


Example of a Library Request command: Display Physicaldrives (backend)

LI REQ,HYDRAE,PDRIVE CBR1020I Processing LIBRARY command: REQ,HYDRAE,PDRIVE. CBR1280I Library HYDRAE request. 061 Keywords: PDRIVE ----------------------------------------------------------------- PHYSICAL DRIVES V2 SERIAL NUM TYPE MODE AVAIL ROLE POOL PVOL LVOL 0000013D0525 3592E07 Y IDLE 00 0000013D0506 3592E07 Y IDLE 00 0000013D0528 3592E07 Y IDLE 00 0000013D0257 3592E07 Y IDLE 00


Example of a Library request command: Settings

LI REQ,HYDRAE,SETTINGCBR1020I Processing LIBRARY command: REQ,HYDRAE,SETTING.CBR1280I Library HYDRAE request. 064Keywords: SETTING ----------------------------------------------------------------SETTING V4 ALERTS COPYLOW = 0 COPYHIGH = 100 PDRVLOW = 0 PDRVCRIT = 0 PSCRLOW = 0 PSCRCRIT = 0 RESDLOW = 0 RESDHIGH = 0 PCPYLOW = 0 PCPYCRIT = 0 DEFDEG = ENABLED REMOVMSG = ENABLED ---------------------------------------------------------------- CACHE CONTROLS COPYFSC = DISABLED RECLPG0 = DISABLED


IBM System Storage

Bulk Volume Information Retrieval Method to extract information from the TS7700 and present it in the z/OS.

It present three types of different information: Standard reports regarding performance Input for the VEHSTATS Specific reports,

– VOLUME STATUS volser = for a specific logical volume– CACHE CONTENTS = what is actually in the cache– VOLUME MAP (PRIMARY or BACKUP) = Logical to physical mapping– POINT IN TIME STATISTICS– HISTORICAL STATISTICS FOR xxx-yyy = for VEHSTATS– PHYSICAL MEDIA POOLS = Detailed information about Pools– PHYSICAL VOLUME STATUS VOLUME zzzzzz = Detail information for specific

Physical volume– PHYSICAL VOLUME STATUS POOL xx = Detail information of all physical

volume in pool xx– COPY AUDIT COPYMODE INCLUDE/EXCLUDE library = Is any volume not copied as

expected ?

Suggested reading: „IBM® Virtualization Engine TS7700 Series Bulk VolumeInformation Retrieval Function User's Guide”


IBM System Storage

Tapetools:

A „for free“ Toolsite – retrieval with FTP from an IBM Site

Includes VEHSTATS

Includes several Tools for specific purposes: Comparison Tape Management Information and TCDB Identify your tape naming conventions by extract the Datasetnames from your

Tape Management System and counter settings Analyze your Mounting behaviour (to get information about virtual volume usage) Support the synchronization of a new cluster (when it was added to a grid) Audit support

It is used mostly during complete Tape Environments analysis, Joins / Unjoin/Merges from clusters to a grid, and in case of issued.


IBM System Storage

Scaleability

The IBM products offer a broad variety to support customerneeds Cache incrementals, additional cache drawers and expansionframes with cache drawers Host throughput incrementals from 100 to 1000 MB/s From 256 up to 1536 logical drives in a 6 cluster grid Cluster Merge / Join / Unjoin scenarios to easily add existing,add new or delete existing clusters in a grid

Easy enhancement of the TS3500 (1-16 frames) Shuttle connectivity to support multiple TS3500 as singleimage library From 4 (for TS7740) to 192 * 3592 drives in a single TS3500


IBM System Storage

Security

Encryption data at rest Encryption physical tapes User roles and permission in the TS7700 Management Interfaces Task logging LDAP connectivity and Limited IPsec Logical Worm


IBM System Storage

Cache Encryption Encryption keys for disk-based encryption (Cache) are managed

internally within the TS7700 system. Interactions with external keymanagement systems are not supported for disk-based encryption inR3.0.

Disk-based encryption requires Release 3.0 disk cache models to beinstalled as the exclusive disk cache models in the TS7700 system.Previous generation disk cache models do not support disk-basedencryption. All drives in the 7720 and 7740 R3.0 disk models are encryption ready.

Zero impact to performance when encryption is activated

Once encryption feature is activated, all existing content and new contentis encrypted

AES 128 bit Encryption

Suggested reading: “White Paper - TS7700 Full Disk Encryption (FDE)”

IBM Confidential


IBM System Storage

TS1140/TS1130/TS1120 Encryption Support – TS7740

Requirements:All TS1140, TS1130 or TS1120 tape drives must be encryption

capableTS1140, TS1130 or TS1120 tape drives must be enabled to run in

native format modeFC 9900 must be ordered

One or more of the 32 physical pools can be enabled forencryption

Out-of-band key management interface accessed viaEthernet interface that connects the TS7740 to the networkRequest for encryption key is directed to I/P address of primary key

manager, responses are passed through the TS7740 to the driveTo read a logical volume from a physical volume in an encryption

enabled pool, the TS7740 uses the key management interface tode-encrypt the data


IBM System Storage

User Profiles / Roles / Permission

In the TS7700 a number of pre-defined roles exists

Each role defines a set of tasks, which the user can execute

You can also define “custom-user-roles”

When adding a personalized user, you define which roleapply to that user, and on which cluster the user can actwithin his role.

In the management interface there is also a completelogging of all the tasks, e.g. Service Prep setting, changes tomanagement constructs, insertion of volumes.


IBM System Storage

User profiles and roles


IBM System Storage

Task logging:


IBM System Storage

LDAP Connectivity and Limited IPsec

TS7700 Direct Connect LDAP Direct connect to LDAP server versus a proxy TPC Storage Authentication Service not required

TSSC Remote Access Security Remote support access optionally protected

through LDAP allowing customers to restrictaccess to the hardware

Limited IPv6 & IPsec IPv6 on MI, LDAP, Encryption network IPsec on Grid network


IBM System Storage

Logical WORM Support

Support for compliant logical worm (LWORM) tape volumes throughTS7700 software emulation Host will view the TS7700 as a logical worm library Minor host software changes will exploit and assist in managing logical WORM volumes LWORM is selected by Data Class Only specific data should be routed to that Data Class

Previously written volumes cannot be upgraded to logical WORMvolumes Must read the contents and rewrite them to a new logical volume that has been bound as

a logical worm volume.


IBM System Storage

Migration

We distinguish two different types of migration scenariosBackend Migration (without copying the data)Host Migration

The Backend Migration are update paths from older IBMTechnology to newer ones. It is a service offering, and will beexecuted on a weekend. The Host Migration is needed: no backend migration is possible (sometimes Disk-only Tape) Vendor replacement no upgrade path exists

IBM offers a service to support your Host migration or executethe Host migration for you.


IBM System Storage

Technology Continuity / Investment Protection

1. Stringent investment protection – and up to date roadmap – for allcomponents of the mainframe tape family

2. Long product-lifecycle of Libraries, Drives and Media1. 3494 still supported, withdrawn from market Mid 20062. TS3500 GA since Mid 20063. TS1120 still supported, Oct 2005, withdrawn from market Oct

20124. After the withdrawel of the 3494 from marketing, there was still

for many years the possibility to get additional storage framesand drives.

3. Migration paths offered from B18 – B20; B20 to TS7740 without copyof the data

4. Migration path offered for „Technology revolutions“• Example: Frame Replacement for TS7740


IBM System Storage

60+ years of tape storage innovation

2010TS7610

TS7680

2008TS1130(3592 G3)

1984IBM 34801st cartridge drive

1964IBM 21041st read/back drive

1959IBM 7291st read/write drive

1952IBM 7261st magnetic tape drive

20033592 Gen1

1995IBM 3590

1999IBM 3590E

2005TS1120(3592 G2)

2004LTO Gen3

2002LTO Gen2

2000LTO Gen1

2007LTO-4

1962IBM Tractor System

1992IBM 3495

1997VTS G1

2000TS3500

1994IBM 3494

1999VTS G2

2001VTS G3

2006TS7740

(VTSGen 4)2005

TS7510 VTL2007TS7520

2007TS3400

2005TS3200TS3300

2007TS7530

2008TS2900TS3500High Density

2008TS7720

2008TS7650G

2009TS7650Appliance

2008TS1130(3592 G3)

1984IBM 34801st cartridge drive

IBM 21041st read/back drive

1959IBM 7291st read/write drive

1952IBM 7261st magnetic tape drive

20033592 Gen1

1995IBM 3590

1999IBM 3590E

2005TS1120(3592 G2)

20022000LTO Gen1

2007

In tape automation and virtualization1992IBM 3495

1997VTS G1

2000TS3500

1994IBM 3494

1999VTS G2

2001VTS G3

2005TS7510 VTL

2007TS7520

2007TS3400

2005TS3200TS3300

2007TS7530

2008TS2900TS3500High Density

2008TS7720

2008TS7650G

19743850 MSS

2009TS7650Appliance

In tape drive technology2010LTO-5

2011TS1140

(3592 G4)

2011TS3500

Connector &shuttle

2012LTO Gen6

2012IBM TSLM software

2010LTFSSDE

2012LTFSSM

2011LTFS

LE

2011TS7740TS7720


IBM System Storage

Backup Foils:


IBM System Storage

Hardware Implementation Steps

Installation Planning, including Grid links and AOTM network Hardware Installation Set up the IBM TS7700 and TS3500 (if applicable) Define the necessary information on the Management Interfaces

• Logical libraries• User-IDs and Roles• Constructs• Define logical volumes• Insert physical Cartridges and Inventory (TS7740 only)

Setup the Automatic Ownership Takeover Manager (AOTM) Setup the Call home function


IBM System Storage

Software Implementation Steps Hardware Configuration Definition

• JES3 Initialization Deck (if applicable) Adress Space OAM (if not already exists) Definition of the TCDB (if not already exists) Definition of the Grid in SMS (composite library, distributed library) Definition of the Management Constructs in SMS

• Data Class• Management Class• Storage Class and Storage Group

• Define ACS routines• Activation of SMS the SMS configuration

All Software components are base software from z/OS – no additionalsoftware needed


IBM System Storage

Optional Implementation Steps

Encryption LDAP attachment Copy Export Usage of logical Worm Monitoring and Alerting: Messages in your automation

system Standard Jobs in your Job Scheduling System for

performance / allocation management


IBM System Storage

TS7700 Grid Management (GDPS/PPRC) Provide TS7700 configuration and status on GDPS panelsMonitoring of TS7700 replication within GDPS and alerts Control TS7700 replication from GDPS scripts and panels

• TAPE ENABLE/DISABLE by library, grid or site

Mutually exclusive with legacy PtPVTS

Tape Library

required connectivityrecommended connectivity

site-1 site-2

site-3

LAN / WANLAN / WAN


IBM System Storage

GDPS/PPRC Status Panel for TS7700


IBM System Storage

GDPS/PPRC: TS7700 “in doubt” Tape Reporting

GDPS support for TS7700 Bulk Volume Information Retrieval (BVIR)for ‘In doubt’ tape reporting

In doubt tape data collection runs as started task: GEOBVIR• GEOBVIR started task procedure shipped in SGDPPARM

• Requires customization Creates report of inconsistencies between libraries in the TS7700 cluster

• Inconsistencies can indicate that a tape does not exist or is back level in aparticular location and special recovery action may be required (such as re-running a batch job)

• Automatically invoked for all libraries in a grid if CBR3785E captured for GDPS-managed library

• Can be manually invoked from the panel at any time for a specific library Display report on a panel and optionally in NetView log Requires new operators: GEOBVInn/AUTBVInn

BVIR reporting provides input for recovery of tape-related applications


IBM System Storage

GDPS/PPRC: TS7700 “in doubt” – New Panel


IBM System Storage

Sample Netlog in-doubt tape report

******************************************************************************

* In-doubt tape report. Library: LIBVTS0 Retrieval date/time: 20130307 110219

* Sort option: VOLSER *

******************************************************************************

* * Data_ * Close_ * *

* VOLSER * Inconsistent * Inconsistent * Hotmask *

******************************************************************************

* 200206 * X * * *

* 230008 * * X LIBVTS1 * *

* 230010 * X * * *

* 230015 * X * * LIBVTS1 LIBVTS2 *

* 230017 * X * X LIBVTS2 * *

* 230035 * * X UNKNOWN * *

******************************************************************************

* End of report


IBM System Storage

Backup Foils: Partitioning


IBM System Storage

Planning the logical partitioning of different LPARs /Sysplexes – Logical volumes:

ƒ Separation are on “Tape Management System Borders” (all LPARssharing the same Tape Management System are using the samelogical volume serials)

ƒ If you don’t have a TMS, you will use your today existing“partitioning schema” for this decision.

ƒ For each Mediatype a Media Cartridge category in the DEVSUP(Parmlib) Member is done. For different LPAR/Sysplexes, youchoose a different Media Cartridge Category. (just one statementfor each Mediatype).

ƒ All Cartridges of the according Mediatype get this Category whenthey get scratch. If later a scratch cartridge is requested from thez/OS, only logical volumes with this Category Number arepresented from the TS7700.


IBM System Storage

Planning the logical partitioning of different LPARs /Sysplexes – Logical drives:

ƒ Separation of drives can be done due to several waysƒIODF Definitions (only certain drives are defined in the OS Part)ƒCommand-Member

ƒ However, these two types of partitioning are “friendly partitioning”– and maybe not sufficient for specific multi-customerenvironments. For these specific requirements, you may want toconsider the “Selective Device Access Control (SDAC)”. For moreinformation see Backup Foils

ƒ Logical Drives could also be handeld (but not separted) byAllocation Managers (like ATAM, CA-MIM)


IBM System Storage

Logical Partitioning of different LPARs / Sysplexes:

z/O

S P

RO

Dde

finiti

ons

• Physical Volume Pool definitions• Scratch Categories•Constructs•Define Library Port Access groups (if necessary – normally Multi-Tenant•Insert logical volumes with the defined volume ranges

TS7700 Definitions on the MI

Volume range in TMS:A00000-A99999Device Range:1000-10DF2000-20DFScratch Category:0012

Volume range in TMS:B00000-B99999Scratch Category:0022Device range:10E0-10FF20E0-20FF

z/OS exam

ples z/O

S T

ES

Tde

finiti

ons


IBM System Storage

Planning the logical partitioning of different LPARs /Sysplexes – Physical volumes:

ƒ You can defined physical volume pools for differentLPAR/Sysplexes or customers.

ƒ You can also define different physical volume pools for onecustomer or LPAR/Sysplex to meet specific requirements (e.g.Encryption, Response Times Requirements)

ƒ There is no partitioning of Physical Drives. This is not necessary,because the physical drives are never directly attached to anLPAR/Sysplex.

ƒ However, you can limit the maximum number of drives that aphysical pool can use at one point in time for migration.


IBM System Storage

Backup Foils: Integration to HSM


IBM System Storage

Integration with HSM:

ƒ The integration for HSM is – as for all other datasets – SMS. Withthe Data Class, Management Class, Storage Class and StorageGroup you direct the HSM datasets to the TS77000.

ƒ Special considerations needs to be taken for HSM Recycle in aTS7740 environment.

ƒ The recycle process for a “volume” is normally startedautomatically, if xx percent (depending on your environment) of thedata are not more valid.

ƒ The HSM itself has no knowledge, that this is a virtual tape, andhas no knowledge, which virtual tape resides on which physicaltape in the backend.

ƒ Therefore, the HSM will produce “backend tape movement” duringthe HSM recycle process.


IBM System Storage

Integration with HSM – Recylce / Reclaim:

ƒ The following parameters influence the Recylce and Reclaim:ƒTape size (Data Class)ƒPercent full (HSM)ƒRecylce percentage (HSM)ƒReclaim percentage (TS7740)ƒInhibit reclaim scheduleƒRecycle schedules

ƒ This parameters, and the following environmental situation define,if you need to take special actions for the recycle process.ƒYour amount of HSM data,ƒThe amount of physical cartridges and physical drivesƒThe overall available cartridge slots

ƒ Please be aware, that this situation is true for all Virtual TapeSystems with real backend cartridges. Cache Only System, like theTS7720, does not have backend physical drives or cartridges.


IBM System Storage

Integration with HSM – Experiences:

ƒ The most of our customers does not have problems with themovement during HSM Recycle.

ƒ Only a very small number of customers with the followingenvironment specifications needed to take special actions:ƒVery large HSM workloadƒVery limited amount of physical cartridges (high reclamationthreshold)ƒVery limited amount of physical cartridge slots (no new mediacould be introduced)ƒ Small TS7740 Cache

ƒ Special actions:ƒSort the logical volumes select from HSM recycle – to ensure,that all logical volumes on the same physical volume will beprocessed in a row.


IBM System Storage

Backup Foils: Selective Device Access Control


IBM System Storage

Selective Device Access Control (SDAC) Enables hard partitioning of a TS7700 between several hosts

Blocks access and control of volumes created by one host from the other hosts Separated by tape management systems, independent volume ranges and scratch pools Access is allowed through specific Library Port IDs (virtual device addresses) Each plex can have a different operating system

z/OS HostLP ID 01-08

41-48

z/OS HostLP ID 09-0C

49-4C

z/OS HostLP ID 0D-10

4D-50

TS7700

Group1 = LP ID 01-08, 41-48Group2 = LP ID 09-0C, 49-4CGroup3 = LP ID 0D-10, 4D-50 • Volume ranges assigned to

groups• Access is allowed if command

is received on a device in theassigned group

Assigned Group3VOL00A-VOL00ZVOLA00-VOLZ00

Assigned Group 2VOL123-VOL999

Assigned Group1VOLABC-VOLZZZ

XVirtual Tape Device Addresses

XXVOL123-VOL999: Group2

VOLABC-VOLZZZ: Group1VOL00A-VOL00Z: Group3VOLA00-VOLZ00: Group3


IBM System Storage

SDAC: How does it work?

Volume Ranges & Library Port IDs provide differentiation between plexesA library port ID represents a single LCU or 16 logical devicesA 6-way TS7700 has 96 pre-defined Library Port IDs… (256x6)/16A range of library port IDs can be representedA range of volumes should be mutually exclusive to a set of Library Port IDs

Provide a method to setup ‘Access Groups’An access group can be viewed as one or more system plexesThe customer can define up to 16 access groups within the MI

– Eight groups allowed per FC5271 feature.– Maximum of two features per cluster (RPQ required).– FC5271 must be installed on all clusters in equal numbers.

Each access group includes one or more ranges of Library Port IDsAccess Groups are grid scope, so all clusters see the same 1 to 16 configured access

groups (plus the default access group)

Provide a method to associate ‘Access Groups’ with volume rangesThe customer would associate one or more ranges of volumes to a particular access

group.Each volume range must be unique without any overlapMaximum of 50 volume ranges supportedb


IBM System Storage

SDAC: How does it work? Volume Access is ProtectedIf a mount (scratch or private) or a LSVA/LSVC targets a volume which currently exists

within an access group defined volume range, it implies protection.– If the volume is outside of all defined ranges, the default access group is implied– If FC5271 is not installed or no ranges/groups are defined, no protection is implied.

If protection is implied, the volume’s targeted ranges currently defined access group areanalyzed. The default access group is used when a volume doesn’t fall into a definedvolume range.

The library port ID associated with the device being used to access the volume isdetermined.

The determined library port ID must exist in the access group definition associated withthe targeted volume range (or default range when no volume range match is found).

– If not included in the definition, the access (read or write) is failed.– CBR4175I Volume volser library library-name access group denies mount.– CBR4176I Volume volser library library-name access group invalid.

Viewing volume inventories and attributes or properties is not protectedA volume’s existing attributes can be viewed by any access groupInventory requests include volumes from all access groups

Service provider has exclusive access to MI & IODFOnly the provider can change library port access group definitions.Giving external users access to IODF or MI exposes the security.

SDAC is enabled using the Host Console Request


7.3 SNMP7.4 Library Port Access Groups7.5 Cluster Settings

Page : Copy Policy OverridePage : Encryption Key ServersPage : Inhibit Reclaim SchedulePage : Write Protect ModePage : Backup SettingsPage : Restore Settings

8.0 Service8.1 Ownership Takeover Mode8.2 Repair Virtual Volumes8.3 Network Diagnostics8.4 Data Collection8.5 Copy Export Recovery pages

(standalone)9.0 Banner9.1 Help items

Help Learning and Tutorial Info Center About

9.2 User items Log off Change Password

9.3 Breadcrumbs10.0 Login

cluster name/ID11.0 Status Pods

Grid Scope Tasks and Alerts Cluster Scope Cache

capacity, Copy Queue, Health

IBM Confidential

TS7700 Index of the MI Navigation1.0 Systems

1.1 Grid Summary (All Systems)Grid Summary- Action : Grid Identification Properties- Action : Lower Removal Threshold- Action : Cluster Families- Display : copy queue- Display : host throughput- Display : ThrottlingCluster Summary- Action: Cluster Identification Properties- Action: Change Cluster State – service

prep/shutdown/Force Service- Display : Physical Library- Display : Cache expansion frame – Real

layout- Display : Cluster – real layout- Display : Port view (cluster Nodes)- Display FICON, Port Acceleration- Display : Tape volume cache- Display : All hardware and cluster specific

info

2.0 Monitor2.1 System (stand alone)2.2 Events2.3 Performance

Page : Historical SummaryPage : Virtual MountsPage : Physical MountsPage : Host ThroughoutPage : Cache ThrottlingPage : Cache Utilization

Page : Grid Network ThroughputPage : Pending Updates

2.4 Tasks3.0 Virtual

3.1 Incoming Copy Queue3.2 Recall Queue3.3 Virtual Tape Drives3.4 Virtual Volumes (all pages)3.5 Categories

4.0 Physical4.1 Physical Volume Pools4.2 Physical Volumes (all pages)4.3 Physical Tape4.4 Physical Media Inventory

5.0 Constructs5.1 Storage Groups5.2 Management Classes5.3 Storage Classes5.4 Data Classes

6.0 Access6.1 Security Settings

Direct LDAP6.2 Roles & Permissions6.3 SSL Certificates6.4 InfoCenter Settings

7.0 Settings7.1 Cluster Network Settings7.2 Feature Licenses

dp&r in zos environment tape, tape libraries and ts7700 ...gsebelux.com/system/files/an update...

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