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IBM DS8880 and IBM Z Synergy

Author Alexander Warmuth , Sidney Varoni Jr. , Marcelo Takakura , Eddie Lin , Robert Gensle
Release Date: 2019/04/01
ISBN: 9780738457536
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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™ Redbooks 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 DS8880 products an ideal combination.

This paper is intended for those 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 z14™ server and the IBM DS8880 Release 8.51 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 DS8880 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 HA/DR 4-site solutions
    2. 2.2 z/OS HyperSwap
    3. 2.3 Copy Services Manager and HyperSwap
      1. 2.3.1 HyperSwap to site H2
      2. 2.3.2 Returning to site H1
      3. 2.3.3 Summary
    4. 2.4 Geographically Dispersed Parallel Sysplex
      1. 2.4.1 GDPS and DS8000 synergy features
      2. 2.4.2 GDPS and DS8000 synergy summary
  6. Chapter 3. Data protection and backup
    1. 3.1 FRBACKUP
      1. 3.1.1 Storage Management Subsystem construct 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
  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 APARs
      3. 4.7.3 Space release
      4. 4.7.4 Overprovisioning controls
    8. 4.8 DSCLI on z/OS
  8. Chapter 5. IBM Z and DS8880 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 allegiance
    3. 5.3 Modified Indirect Data Access Word facility
    4. 5.4 Caching algorithm that is optimized for IBM Z
    5. 5.5 High-Performance FICON for IBM Z
      1. 5.5.1 Db2 enhancements with zHPF
      2. 5.5.2 Extended Distance and Extended Distance II
      3. 5.5.3 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 I/O Priority Manager and WLM for z/OS integration
    9. 5.9 IBM zHyperWrite
      1. 5.9.1 zHyperWrite installation and enablement
      2. 5.9.2 zHyperWrite and IMS 15
    10. 5.10 DS8000 Copy Services performance considerations
      1. 5.10.1 FlashCopy and performance considerations
    11. 5.11 DS8000 storage system and z14 I/O enhancements
      1. 5.11.1 FICON Multihop
      2. 5.11.2 FICON Dynamic Routing
      3. 5.11.3 Forward Error Correction
      4. 5.11.4 Read Diagnostic Parameters for improved fault isolation
      5. 5.11.5 zHyperLink
    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
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