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

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

by Ewerson Palacio, Marlon Cerqueira, Andre Coelho, Marcelo Moraes
Released October 2021
Publisher(s): IBM Redbooks
ISBN: 9780738460086

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Book description

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

Product information

  • Title: IBM DS8000 and IBM Z Synergy DS8000: Release 9.2 and z/OS 2.5
  • Author(s): Ewerson Palacio, Marlon Cerqueira, Andre Coelho, Marcelo Moraes
  • Release date: October 2021
  • Publisher(s): IBM Redbooks
  • ISBN: 9780738460086