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DS8870 Data Migration Techniques

Book Description

This IBM® Redbooks® publication describes data migrations between IBM DS8000® storage systems, where in most cases one or more older DS8000 models are being replaced by the newer DS8870 model. Most of the migration methods are based on the DS8000 Copy Services.

The book includes considerations for solutions such as IBM Tivoli® Productivity Center for Replication and the IBM Geographically Dispersed Parallel Sysplex™ (GDPS®) used in IBM z/OS® environments. Both offerings are primarily designed to enable a disaster recovery using DS8000 Copy Services. In most data migration cases, Tivoli Productivity Center for Replication or GDPS will not directly provide functions for the data migration itself. However, this book explains how to bring the new migrated environment back into the control of GDPS or Tivoli Productivity Center for Replication.

In addition to the Copy Services based migrations, the book also covers host-based mirroring techniques, using IBM Transparent Data Migration Facility (TDMF®) for z/OS and the z/OS Dataset Mobility Facility (zDMF).

Table of Contents

  1. Front cover
  2. Notices
    1. Trademarks
  3. IBM Redbooks promotions
  4. Preface
    1. Authors
    2. Now you can become a published author, too!
    3. Comments welcome
    4. Stay connected to IBM Redbooks
  5. Chapter 1. Introducing disk data migration
    1. 1.1 Overview
    2. 1.2 Data migration and its business reasons
    3. 1.3 Aspects of data migration
    4. 1.4 Definition of migration processes
    5. 1.5 Planning phase
      1. 1.5.1 Analyzing the current situation
      2. 1.5.2 Designing and developing migration scenarios
      3. 1.5.3 Testing
      4. 1.5.4 Supporting tools and products
      5. 1.5.5 Migration plan
    6. 1.6 Migration phase
    7. 1.7 Post migration phase
      1. 1.7.1 Validation
      2. 1.7.2 Production take over
      3. 1.7.3 Cleaning up
      4. 1.7.4 Reports and documentation
  6. Part 1 Copy Services based Migration Scenarios
  7. Chapter 2. Copy Services based data migrations
    1. 2.1 Terms
      1. 2.1.1 Volume set
      2. 2.1.2 Data replication and cut over
      3. 2.1.3 Site
      4. 2.1.4 Out-of-sync tracks
      5. 2.1.5 Primary and secondary volumes
      6. 2.1.6 Conventions in diagrams
    2. 2.2 Requirements
    3. 2.3 Data replication
      1. 2.3.1 Set up Global Copy
      2. 2.3.2 Monitor Global Copy progress
      3. 2.3.3 Prepare for cut over
    4. 2.4 Data validation testing
      1. 2.4.1 Host considerations
      2. 2.4.2 Prepare the new volume set for testing
      3. 2.4.3 Data validation testing
      4. 2.4.4 Data validation testing complete
    5. 2.5 Tivoli Storage Productivity Center for Replication considerations
      1. 2.5.1 Can Tivoli Storage Productivity Center for Replication help setting up the required replication?
      2. 2.5.2 Bring new volume set into the existing Tivoli Storage Productivity Center for Replication configuration
    6. 2.6 HyperSwap considerations
    7. 2.7 Multiple Target PPRC considerations
  8. Chapter 3. Data Migration with no pre-existing copy services replication
    1. 3.1 Initial configuration
    2. 3.2 Migration process
      1. 3.2.1 General considerations
      2. 3.2.2 Migrating source volume set
      3. 3.2.3 Using Tivoli Storage Productivity Center for Replication
  9. Chapter 4. Data Migration with 2-site Metro Mirror replication
    1. 4.1 Initial configuration
    2. 4.2 Migration process
      1. 4.2.1 General considerations
      2. 4.2.2 Replacing secondary
      3. 4.2.3 Replacing primary
      4. 4.2.4 Replacing primary and secondary DS8000
    3. 4.3 Geographically Dispersed Parallel Sysplex (GDPS) considerations
  10. Chapter 5. Data Migration with 3-site Metro Mirror replication
    1. 5.1 Initial configuration
    2. 5.2 Migration process
      1. 5.2.1 Replacing site 2 or site 3 volume set
      2. 5.2.2 Replacing the site 1 volume set
      3. 5.2.3 Example for cut-over sequence
      4. 5.2.4 HyperSwap considerations
  11. Chapter 6. Data Migration with 2-site Global Mirror replication
    1. 6.1 Initial configuration
    2. 6.2 Migration process
      1. 6.2.1 General considerations
      2. 6.2.2 Replacing auxiliary storage
      3. 6.2.3 Replacing primary storage
      4. 6.2.4 Replacing primary and auxiliary storage
    3. 6.3 GDPS considerations
  12. Chapter 7. Data Migration with Metro/Global Mirror replication
    1. 7.1 Initial configuration
    2. 7.2 Migration process
      1. 7.2.1 General considerations
    3. 7.3 Migration Scenarios
      1. 7.3.1 Replacing the C volume set without automation
      2. 7.3.2 Replacing the B volume set without automation
      3. 7.3.3 Replacing the A volume set without automation
      4. 7.3.4 Replacing the A and B volume set without automation
      5. 7.3.5 Replace all volume sets without automation
    4. 7.4 Geographically Dispersed Parallel Sysplex (GDPS) considerations
  13. Chapter 8. Data Migration with 2-site z/OS Global Mirror replication
    1. 8.1 Initial configuration
    2. 8.2 Migration process
      1. 8.2.1 General considerations
      2. 8.2.2 zGM running in migration mode
      3. 8.2.3 Replacing primary storage system in a zGM DR configuration
      4. 8.2.4 Replacing auxiliary storage system within a zGM DR configuration
  14. Chapter 9. Data Migration with GDPS/Metro and z/Global Mirror replication
    1. 9.1 GDPS Terminology
      1. 9.1.1 Site-1 and Site-2
      2. 9.1.2 PPRC Controlling System
      3. 9.1.3 Application system
      4. 9.1.4 PPRC Master System
      5. 9.1.5 PPRC Freeze
      6. 9.1.6 HyperSwap
    2. 9.2 Initial configuration
    3. 9.3 Migration process
      1. 9.3.1 General considerations
    4. 9.4 Migration Scenarios
      1. 9.4.1 Replacing the zGM secondary
      2. 9.4.2 Replacing the current Metro Mirror secondary
      3. 9.4.3 Replacing the current Metro Mirror primary
  15. Part 2 z/OS based Migration Scenarios
  16. Chapter 10. Using TDMF z/OS
    1. 10.1 General information about TDMF z/OS
      1. 10.1.1 Provided Functions
      2. 10.1.2 Terminology
    2. 10.2 Using TDMF z/OS in a local shared storage environment
      1. 10.2.1 Overview of TDMF z/OS
      2. 10.2.2 Example migration scenario in a shared storage environment
      3. 10.2.3 Tips and preferred practices
    3. 10.3 Using TDMF z/OS in a remote environment
      1. 10.3.1 Overview of Remote Replication with TDMF z/OS
      2. 10.3.2 General guidelines for using TDMF in a remote environment
      3. 10.3.3 Example Remote Replication scenario with TDMF z/OS
  17. Chapter 11. z/OS Dataset Mobility Facility
    1. 11.1 z/OS Dataset Mobility Facility overview
    2. 11.2 Terminology
    3. 11.3 zDMF migration process
      1. 11.3.1 zDMF migration steps
      2. 11.3.2 Planning the migration
      3. 11.3.3 Pre-migration tasks
      4. 11.3.4 Tools for migrating data sets
      5. 11.3.5 zDMF migration planning
      6. 11.3.6 Typical migration scenario
      7. 11.3.7 Migration performance and scalability
      8. 11.3.8 Post-migration
    4. 11.4 Important zDMF-related topics
      1. 11.4.1 Understanding the catalog structure
      2. 11.4.2 Catalog diagnostic recommendations
      3. 11.4.3 Global resource serialization (GRS)
    5. 11.5 Migration in an experimental shared DB2 test environment
      1. 11.5.1 Overview of experimental environment
      2. 11.5.2 Preparing a list of data sets to be migrated
      3. 11.5.3 Creating JCL for the zDMF batch utility
      4. 11.5.4 Starting and Monitoring the migration
      5. 11.5.5 Diverting the Group
      6. 11.5.6 Performing post migration cleanup
  18. Related publications
    1. IBM Redbooks
    2. Other publications
    3. Online resources
    4. Help from IBM
  19. Back cover
  20. IBM System x Reference Architecture for Hadoop: IBM InfoSphere BigInsights Reference Architecture
    1. Introduction
    2. Business problem and business value
    3. Reference architecture use
    4. Requirements
    5. InfoSphere BigInsights predefined configuration
    6. InfoSphere BigInsights HBase predefined configuration
    7. Deployment considerations
    8. Customizing the predefined configurations
    9. Predefined configuration bill of materials
    10. References
    11. The team who wrote this paper
    12. Now you can become a published author, too!
    13. Stay connected to IBM Redbooks
  21. Notices
    1. Trademarks