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IBM DS8000 and IBM Z Synergy DS8000: Release 9.2 and z/OS 2.5

Author Ewerson Palacio , Marlon Cerqueira , Andre Coelho , Marcelo Moraes
Release Date: 2021/10/01
ISBN: 9780738460086
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IBM® Z has a close and unique relationship to its storage. Over the years, improvements to the Z processors and storage software, the disk storage systems, and their communication architecture consistently reinforced this synergy.

This IBM Redpaper publication summarizes and highlights the various aspects, advanced functions, and technologies that are often pioneered by IBM, and that make the IBM Z® and the IBM DS8000 products an ideal combination.

This paper is intended for users who have some familiarity with IBM Z and the IBM DS8000® series and want a condensed but comprehensive overview of the synergy items up to the IBM z15™ server with z/OS v2.5 and the IBM DS8900 Release 9.2 firmware.

Table of Contents

  1. Front cover
  2. Notices
    1. Trademarks
  3. Preface
    1. Authors
    2. Now you can become a published author, too!
    3. Comments welcome
    4. Stay connected to IBM Redbooks
  4. Chapter 1. Introduction
    1. 1.1 IBM DS8000 storage system and IBM Z synergy
    2. 1.1.1 IBM Z server heritage
    3. 1.1.2 Disk storage system heritage
    4. 1.1.3 Connecting layer
    5. 1.1.4 Putting the pieces together: Synergy
    6. 1.1.5 Mainframe and storage end-to-end configuration model
    7. 1.2 Synergy items
    8. 1.2.1 Disaster recovery and high availability items
    9. 1.2.2 Data protection and backup
    10. 1.2.3 More information
  5. Chapter 2. Disaster recovery and high availability
    1. 2.1 DS8000 Copy Services functions
    2. 2.1.1 Metro Mirror 2-site synchronous volume replication
    3. 2.1.2 Global Mirror 2-site asynchronous volume replication
    4. 2.1.3 z/OS Global Mirror 2-site asynchronous volume replication
    5. 2.1.4 Metro/Global Mirror 3-site solution
    6. 2.1.5 Multiple-Target Peer-to-Peer Remote Copy 3-site solutions
    7. 2.1.6 Symmetrical HADR 4-site solutions
    8. 2.2 z/OS HyperSwap
    9. 2.3 Consistent Read from Secondary
    10. 2.3.1 CRS requirements
    11. 2.4 Copy Services Manager and HyperSwap
    12. 2.4.1 HyperSwap to site H2
    13. 2.4.2 Returning to site H1
    14. 2.4.3 Summary
    15. 2.5 Geographically Dispersed Parallel Sysplex
    16. 2.5.1 GDPS and DS8000 synergy features
    17. 2.5.2 GDPS and DS8000 synergy summary
  6. Chapter 3. Data protection and backup
    1. 3.1 FRBACKUP
    2. 3.1.1 Storage Management Subsystem construct of the Copy Pool to support FRBACKUP as input
    3. 3.1.2 Copy Pool Backup Storage Group for output to FRBACKUP
    4. 3.1.3 Combining Copy Pool and Copy Pool Backup Storage Group
    5. 3.1.4 The frbackup command
    6. 3.1.5 FRBACKUP software-based interaction
    7. 3.2 Using FlashCopy with Db2 and IMS
    8. 3.2.1 FlashCopy and Db2 for z/OS synergy
    9. 3.2.2 FlashCopy and IMS for z/OS synergy
    10. 3.2.3 z/OS Distributed Data Backup
  7. Chapter 4. Management and configuration
    1. 4.1 Storage pool design considerations
    2. 4.1.1 Storage pool design considerations within z/OS
    3. 4.1.2 z/OS DFSMS class transition
    4. 4.1.3 DS8000 storage pools
    5. 4.1.4 Combining SMS Storage Groups and DS8000 extent pools
    6. 4.2 Extended address volume enhancements
    7. 4.2.1 Data set type dependencies on an EAV
    8. 4.2.2 z/OS prerequisites for EAV volumes
    9. 4.2.3 Identifying an EAV volume
    10. 4.2.4 EAV migration considerations
    11. 4.3 Dynamic volume expansion
    12. 4.4 Quick initialization
    13. 4.5 Volume formatting overwrite protection
    14. 4.6 Channel paths and a control-unit-initiated reconfiguration
    15. 4.7 CKD thin provisioning
    16. 4.7.1 Advantages
    17. 4.7.2 Space release
    18. 4.7.3 Overprovisioning controls
    19. 4.8 DS CLI on z/OS
    20. 4.9 Lightweight Directory Access Protocol authentication
    21. 4.10 Volume-level performance reporting
    22. 4.10.1 Performance Graphs report
    23. 4.11 Fibre Channel connectivity report
    24. 4.12 Encryption without key servers
    25. 4.13 Transparent Cloud Tiering multi-cloud support
  8. Chapter 5. IBM Z and DS8000 performance
    1. 5.1 Parallel access volume, HyperPAV, and SuperPAV
    2. 5.1.1 Dynamic PAV tuning with z/OS Workload Manager
    3. 5.1.2 HyperPAV
    4. 5.1.3 RMF reporting on PAV
    5. 5.1.4 PAV and HyperPAV in z/VM environments
    6. 5.1.5 SuperPAV
    7. 5.2 Multiple allegiances
    8. 5.3 The Modified Indirect Data Access Word facility
    9. 5.4 A caching algorithm that is optimized for IBM Z
    10. 5.5 High-Performance FICON for IBM Z
    11. 5.5.1 DFSORT using IBM Integrated Accelerator for Z Sort
    12. 5.5.2 Db2 enhancements with zHPF
    13. 5.5.3 Extended Distance and Extended Distance II
    14. 5.5.4 Enhanced FICON Information Unit pacing
    15. 5.6 Easy Tier
    16. 5.6.1 Easy Tier Application
    17. 5.6.2 Heat Map Transfer
    18. 5.7 I/O priority queuing
    19. 5.8 IBM zHyperWrite
    20. 5.8.1 IBM zHyperWrite installation and enablement
    21. 5.8.2 IBM zHyperWrite and IMS 15
    22. 5.9 DS8000 Copy Services performance considerations
    23. 5.10 DS8000 storage system and I/O enhancements since IBM z14
    24. 5.10.1 FICON Multihop
    25. 5.10.2 FICON Dynamic Routing
    26. 5.10.3 Forward Error Correction
    27. 5.10.4 Read Diagnostic Parameters for improved fault isolation
    28. 5.10.5 IBM zHyperLink
    29. 5.11 DS8000 I/O synergy with IBM z15: IBM Fibre Channel Endpoint Security
    30. 5.12 IBM zEnterprise data compression
    31. 5.13 Transparent Cloud Tiering
  9. Related publications
    1. IBM Redbooks
    2. Other publications
    3. Online resources
    4. Help from IBM
  10. Back cover
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