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IBM DS8000 Copy Services: Updated for IBM DS8000 Release 9.1

Release Date: 2021/05/01
ISBN: 9780738459578
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This IBM® Redbooks® publication helps you plan, install, configure, and manage Copy Services on the IBM DS8000® operating in an IBM Z® or Open Systems environment.

This book helps you design and implement a new Copy Services installation or migrate from an existing installation. It includes hints and tips to maximize the effectiveness of your installation, and information about tools and products to automate Copy Services functions.

It is intended for anyone who needs a detailed and practical understanding of the DS8000 Copy Services.

This edition is an update for the DS8900 Release 9.1.

Note that the Safeguarded Copy feature is covered in IBM DS8000 Safeguarded Copy, REDP-5506.

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. Part 1 Overview
  5. Chapter 1. Introduction
    1. 1.1 Point-in-time copy functions
    2. 1.1.1 FlashCopy
    3. 1.1.2 Remote Pair FlashCopy (Preserve Mirror)
    4. 1.1.3 Cascading FlashCopy
    5. 1.2 Business-continuity functions
    6. 1.2.1 Metro Mirror
    7. 1.2.2 Global Copy
    8. 1.2.3 Global Mirror
    9. 1.2.4 Three-site Metro/Global Mirror with Incremental Resync
    10. 1.2.5 IBM Multiple Target Peer-to-Peer Remote Copy
    11. 1.2.6 SafeGuarded Copy
    12. 1.3 Copy Services functions unique to z/OS
    13. 1.3.1 z/OS Global Mirror and Metro Mirror across three sites
    14. 1.3.2 IBM z/OS Metro/Global Mirror Incremental Resync (M/zGM Resync)
  6. Chapter 2. Licensing
    1. 2.1 Licensed function
    2. 2.2 License scope
    3. 2.3 Copy Services license functions and guidelines
    4. 2.3.1 Copy Services capacity examples
    5. 2.3.2 Managing use of Copy Services licensed functions
  7. Part 2 Interfaces
  8. Chapter 3. Copy Services interfaces overview
    1. 3.1 Summary tables
  9. Chapter 4. DS command-line interface
    1. 4.1 User accounts
    2. 4.2 DS CLI profile
    3. 4.3 DS CLI command modes
    4. 4.4 DS CLI Copy Services command structure
  10. Chapter 5. IBM Z interfaces
    1. 5.1 IBM Z command alternatives
    2. 5.2 TSO commands for z/OS
    3. 5.2.1 Protecting TSO Copy Services commands
    4. 5.3 ICKDSF commands for z/OS, z/VM, z/VSE
    5. 5.3.1 Protecting ICKDSF Copy Services commands
    6. 5.4 DFSMSdss copy commands with fast replication
    7. 5.5 The ANTRQST API
    8. 5.5.1 Protecting ANTRQST API Functions
    9. 5.6 The ANTTREXX API and samples
    10. 5.6.1 Protecting ANTTREXX API Functions
    11. 5.6.2 Sample REXX Programs in DGTCLIB
    12. 5.7 Native z/VM commands for FlashCopy
    13. 5.8 Native z/VSE commands for FlashCopy
    14. 5.9 Native z/TPF commands
  11. Part 3 FlashCopy
  12. Chapter 6. FlashCopy overview
    1. 6.1 FlashCopy operational environments
    2. 6.2 Terminology
    3. 6.3 Basic concepts
    4. 6.4 Source and target limitations
  13. Chapter 7. FlashCopy options
    1. 7.1 Full volume Flashcopy
    2. 7.2 FlashCopy for z/OS data sets
    3. 7.3 Copy option
    4. 7.4 NoCopy option
    5. 7.5 Cascaded Flashcopy
    6. 7.6 Persistent FlashCopy
    7. 7.7 Incremental FlashCopy
    8. 7.8 Reversing FlashCopy
    9. 7.9 Fast reverse restore
    10. 7.10 Remote (in-band) FlashCopy
    11. 7.11 Remote Pair Flashcopy
    12. 7.12 Consistent FlashCopy (FlashCopy consistency group)
  14. Chapter 8. FlashCopy interfaces
    1. 8.1 FlashCopy management interfaces: Overview
    2. 8.2 FlashCopy command interface reference
    3. 8.3 FlashCopy control with the interfaces
    4. 8.4 FlashCopy in z/OS using DFSMSdss
    5. 8.4.1 DFSMSdss Full volume FlashCopy
    6. 8.4.2 DFSMSdss data set FlashCopy
  15. Chapter 9. Cascading FlashCopy
    1. 9.1 Introduction
    2. 9.1.1 Flashcopy
    3. 9.1.2 FlashCopy prior to the cascading capability
    4. 9.2 Cascading FlashCopy concept and design
    5. 9.2.1 Typical use cases
    6. 9.2.2 Terminology
    7. 9.3 Cascading FlashCopy and Fast Reverse Restore
    8. 9.4 Thin provisioning considerations
    9. 9.4.1 Space release
    10. 9.4.2 Withdrawing Cascading FlashCopy relationships
    11. 9.4.3 Out of Space conditions
    12. 9.5 Design limitations
  16. Chapter 10. Remote Pair FlashCopy
    1. 10.1 FlashCopy in combination with other Copy Services
    2. 10.1.1 Terminology
    3. 10.1.2 FlashCopy with Metro Mirror and Global Copy
    4. 10.1.3 FlashCopy and Global Mirror
    5. 10.2 Remote Pair FlashCopy
    6. 10.2.1 Features of Remote Pair FlashCopy
    7. 10.2.2 Considerations
    8. 10.3 Remote Pair FlashCopy implementation and usage
    9. 10.4 Remote Pair FlashCopy withdrawal
    10. 10.4.1 Withdraw with Background Copy
    11. 10.4.2 Forcing FlashCopy Withdraw
    12. 10.4.3 Withdrawing on the Metro Mirror secondary
    13. 10.4.4 FlashCopy Withdraw interface differences
    14. 10.5 Remote Pair FlashCopy impact on Metro Mirror state
    15. 10.6 Using Remote Pair FlashCopy in a z/OS environment
    16. 10.6.1 Remote Pair FlashCopy and SMS volume selection
    17. 10.7 FlashCopy considerations for Metro/Global Mirror and Multiple Target PPRC
    18. 10.7.1 Remote Pair FlashCopy with Multiple Target PPRC
  17. Chapter 11. FlashCopy performance
    1. 11.1 FlashCopy performance overview
    2. 11.1.1 Distribution of the workload: Location of source and target volumes
    3. 11.1.2 LSS/LCU versus rank: Considerations
    4. 11.1.3 Rank characteristics
    5. 11.2 FlashCopy establish performance
    6. 11.3 Background copy performance
    7. 11.4 FlashCopy impact on applications
    8. 11.4.1 FlashCopy nocopy
    9. 11.4.2 FlashCopy full copy
    10. 11.4.3 Incremental FlashCopy
    11. 11.5 FlashCopy scenarios
    12. 11.5.1 Scenario #1: Backup to disk
    13. 11.5.2 Scenario #2: Backup to tape
    14. 11.5.3 Scenario #3: FlashCopy during peak application activity
    15. 11.5.4 Scenario #4: Ranks reserved for FlashCopy
  18. Chapter 12. FlashCopy examples
    1. 12.1 Creating a test system or integration system
    2. 12.1.1 One-time test system
    3. 12.1.2 Multiple setup of a test system with the same contents
    4. 12.2 Creating a backup
    5. 12.2.1 Creating a FlashCopy for backup purposes without a volume copy
    6. 12.2.2 Incremental FlashCopy for backup purposes
    7. 12.2.3 Using a target volume to restore its contents back to the source
    8. 12.3 Cascaded FlashCopy usage and examples
    9. 12.3.1 Maintain multiple FlashCopy relationships
    10. 12.3.2 Global Mirror configuration and multiple FC targets
    11. 12.3.3 Simple forward cascading FlashCopy
    12. 12.3.4 Reverse FlashCopy
    13. 12.3.5 Cascading data set level FlashCopy
    14. 12.3.6 Multiple FC relationships in a more complex configuration
    15. 12.4 Establishing a remote FlashCopy
    16. 12.5 Establishing Remote Pair Flashcopy
    17. 12.6 TSO FlashCopy query commands
    18. 12.7 ICKDSF query command for FlashCopy
  19. Chapter 13. FlashCopy usage with z/OS products
    1. 13.1 Using FlashCopy for COPY, DUMP, and RESTORE
    2. 13.2 Using FlashCopy for DEFRAG
    3. 13.3 DFSMShsm Fast Replication
    4. 13.4 Using FlashCopy with DB2 for z/OS
  20. Part 4 Metro Mirror and Global Copy
  21. Chapter 14. Metro Mirror overview
    1. 14.1 Metro Mirror overview
    2. 14.2 Metro Mirror positioning
  22. Chapter 15. Global Copy overview
    1. 15.1 Global Copy overview
    2. 15.2 Global Copy positioning
  23. Chapter 16. Metro Mirror and Global Copy paths
    1. 16.1 PPRC paths and links
    2. 16.2 Fibre Channel physical links
    3. 16.3 Logical paths
  24. Chapter 17. Metro Mirror and Global Copy operations
    1. 17.1 Metro Mirror and Global Copy pair states
    2. 17.2 Basic Metro Mirror and Global Copy operation
    3. 17.2.1 Establishing logical PPRC paths
    4. 17.2.2 Removing logical PPRC paths
    5. 17.2.3 Establishing a PPRC pair
    6. 17.2.4 Suspending a PPRC pair
    7. 17.2.5 Resuming a PPRC pair
    8. 17.2.6 Removing a PPRC pair
    9. 17.3 Suspension
    10. 17.4 Freeze
    11. 17.4.1 Unfreeze (consistency group created)
    12. 17.5 PPRC failover and failback
    13. 17.5.1 PPRC Failover
    14. 17.5.2 PPRC Failback
    15. 17.5.3 Failover/Failback scenario
    16. 17.6 Metro Mirror data consistency
    17. 17.7 Rolling disaster
    18. 17.8 Consistency group function
    19. 17.8.1 Data consistency and dependent writes
    20. 17.8.2 Consistency group function: How it works
    21. 17.8.3 Critical attribute (IBM Z only)
    22. 17.9 Creating a Global Copy consistent copy
    23. 17.10 Automation and management
  25. Chapter 18. Metro Mirror and Global Copy implementation considerations
    1. 18.1 Bandwidth considerations
    2. 18.1.1 Metro Mirror bandwidth considerations
    3. 18.1.2 Global Copy bandwidth considerations
    4. 18.2 Performance considerations
    5. 18.2.1 Managing the load
    6. 18.2.2 Initial synchronization
    7. 18.2.3 Metro Mirror distance considerations
    8. 18.2.4 z/OS Resource Management Facility
    9. 18.3 Symmetrical configuration
    10. 18.4 Volume selection
    11. 18.5 Hardware requirements
    12. 18.5.1 License
    13. 18.5.2 Interoperability
    14. 18.5.3 Connectivity: Ports, paths, and links
    15. 18.5.4 LSS and consistency group considerations
    16. 18.6 Scalability
    17. 18.7 Distance considerations
    18. 18.7.1 Fibre Channel switches (FICON switches)
    19. 18.7.2 Channel extender
    20. 18.7.3 Dense wavelength division multiplexing (DWDM)
    21. 18.8 z/OS multiple subchannel set support
    22. 18.9 Global Copy point-in-time backup solution considerations
  26. Chapter 19. Metro Mirror and Global Copy interfaces and examples
    1. 19.1 Metro Mirror and Global Copy interfaces overview
    2. 19.1.1 Metro Mirror and Global Copy command reference
    3. 19.2 Metro Mirror and Global Copy DS CLI examples
    4. 19.2.1 Setup, remove and manage of a Metro Mirror configuration
    5. 19.2.2 Switching over to a backup site
    6. 19.2.3 Switching back to a primary site
    7. 19.2.4 Metro Mirror freezepprc and unfreezepprc commands
    8. 19.2.5 Changing the copy mode from Metro Mirror to Global Copy
    9. 19.2.6 Changing the copy mode from Global Copy to Metro Mirror
    10. 19.2.7 Periodic offsite backup procedure
    11. 19.2.8 Managing data migration with Global Copy
    12. 19.3 Metro Mirror and Global Copy TSO examples
    13. 19.3.1 Query an established path
    14. 19.3.2 Query a Metro Mirror or Global Copy primary
    15. 19.3.3 Querying a Metro Mirror Secondary
    16. 19.4 Metro Mirror and Global Copy ICKDSF examples
    17. 19.4.1 Displaying the Fibre Channel Connection Information Table
    18. 19.4.2 Query device status
    19. 19.4.3 Defining and querying a Metro Mirror path
  27. Part 5 Global Mirror
  28. Chapter 20. Global Mirror overview
    1. 20.1 Global Mirror basic concepts
    2. 20.1.1 Terminology in Global Mirror environments
    3. 20.1.2 Application I/O and Global Mirror
    4. 20.1.3 Asynchronous replication technique
    5. 20.1.4 Global Mirror Master Subordinate relationship
    6. 20.2 Global Mirror consistency group processing
    7. 20.2.1 Properties of the Global Mirror journal
    8. 20.2.2 Consistency group formation
    9. 20.2.3 Consistency group parameters
  29. Chapter 21. Global Mirror operations and recovery
    1. 21.1 Modifying a Global Mirror session
    2. 21.1.1 Adding volume pairs to or removing volume pairs from a Global Mirror session
    3. 21.1.2 Adding or removing storage systems or LSSs
    4. 21.1.3 Modifying Global Mirror session parameters
    5. 21.1.4 Global Mirror environment topology changes
    6. 21.2 Global Mirror with multiple storage systems
    7. 21.3 Multiple Global Mirror sessions
    8. 21.4 Host connectivity at primary and secondary sites
    9. 21.4.1 Multisite host connectivity
    10. 21.4.2 Single-site host connectivity
    11. 21.5 Taking an additional copy for disaster recovery testing
    12. 21.6 Global Mirror recovery
    13. 21.6.1 Autonomic behavior
    14. 21.6.2 General recovery principle
  30. Chapter 22. Global Mirror interfaces and examples
    1. 22.1 Global Mirror interface overview
    2. 22.1.1 Global Mirror command reference
    3. 22.2 Establishing a Global Mirror environment by using the DS CLI
    4. 22.2.1 Creating Global Copy relationships: H1 to H2 volumes
    5. 22.2.2 Creating FlashCopy relationships: H2 to J2 volumes
    6. 22.2.3 Defining and Starting Global Mirror
    7. 22.3 Removing a Global Mirror environment with the DS CLI
    8. 22.3.1 Ending Global Mirror processing
    9. 22.3.2 Removing the H1 volumes from the Global Mirror session
    10. 22.3.3 Removing the Global Mirror session
    11. 22.3.4 Terminating FlashCopy pairs
    12. 22.3.5 Terminating Global Copy pairs and removing the paths
    13. 22.4 Managing the Global Mirror environment with the DS CLI
    14. 22.4.1 Pausing and resuming Global Mirror consistency group formation
    15. 22.4.2 Changing the Global Mirror tuning parameters
    16. 22.4.3 Stopping and starting Global Mirror
    17. 22.4.4 Adding and removing volumes to the Global Mirror environment
    18. 22.4.5 Adding and removing an LSS to an existing Global Mirror environment
    19. 22.4.6 Adding and removing a subordinate storage system
    20. 22.5 Recovery scenario after a local site failure by using the DS CLI
    21. 22.5.1 Summary of the recovery scenario
    22. 22.5.2 Stopping Global Mirror processing
    23. 22.5.3 Performing Global Copy failover from H2 to H1
    24. 22.5.4 Verifying a valid consistency group state
    25. 22.5.5 Reversing FlashCopy from H2 to J2
    26. 22.5.6 Re-establishing the FlashCopy relationship from H2 to J2
    27. 22.5.7 Restarting the application at the remote site
    28. 22.6 Returning to the local site
    29. 22.6.1 Creating paths from H2 to H1
    30. 22.6.2 Performing Global Copy failback from H2 to H1
    31. 22.6.3 Querying for the Global Copy first pass completion
    32. 22.6.4 Quiescing the application at the remote site
    33. 22.6.5 Querying the out-of-sync tracks until the result shows zero
    34. 22.6.6 Creating paths from H1 to H2 if they do not exist
    35. 22.6.7 Performing Global Copy failover from H1 to H2
    36. 22.6.8 Performing Global Copy failback from H1 to H2
    37. 22.6.9 Starting Global Mirror
    38. 22.7 Practicing disaster recovery readiness
    39. 22.7.1 Querying the Global Mirror environment
    40. 22.7.2 Pausing Global Mirror and checking its completion
    41. 22.7.3 Pausing Global Copy pairs
    42. 22.7.4 Performing Global Copy failover from H2 to H1
    43. 22.7.5 Creating consistent data on H2 volumes
    44. 22.7.6 Waiting for the FlashCopy background copy to complete
    45. 22.7.7 Re-establishing the FlashCopy relationships
    46. 22.7.8 Taking a FlashCopy from I2 to H2
    47. 22.7.9 Performing disaster recovery testing by using the H2 volume
    48. 22.7.10 Performing Global Copy failback from H1 to H2
    49. 22.7.11 Waiting for the Global Copy first pass to complete
    50. 22.7.12 Resuming Global Mirror
    51. 22.8 Query Global Mirror session information with IBM Z TSO or ICKDSF interfaces
    52. 22.8.1 Querying Global Mirror session by using TSO
    53. 22.8.2 Querying the Global Mirror session by using ICKDSF
  31. Part 6 z/OS Global Mirror
  32. Chapter 23. z/OS Global Mirror overview
    1. 23.1 z/OS Global Mirror introduction
    2. 23.2 z/OS Global Mirror terms and processes
    3. 23.2.1 Primary volume
    4. 23.2.2 Secondary volumes
    5. 23.2.3 Tertiary volumes
    6. 23.2.4 Swap volumes
    7. 23.2.5 Primary storage system
    8. 23.2.6 Secondary storage system
    9. 23.2.7 System data mover
    10. 23.2.8 z/OS Global Mirror session
    11. 23.2.9 Consistency group
    12. 23.2.10 XRC or infrastructure data sets
    13. 23.2.11 Utility devices
    14. 23.3 z/OS Global Mirror operation: Data flow
  33. Chapter 24. z/OS Global Mirror interfaces
    1. 24.1 zGM commands summary
    2. 24.2 ANTRQST and ANTTREXX API
  34. Chapter 25. How z/OS Global Mirror maintains consistency
    1. 25.1 Consistency group
    2. 25.2 Time stamping process
    3. 25.3 Common time reference
    4. 25.3.1 z/OS
    5. 25.3.2 z/VM
    6. 25.3.3 Linux on IBM Z
    7. 25.4 z/OS Global Mirror consistency example
    8. 25.4.1 Gathering the data to be mirrored
    9. 25.4.2 Creating a consistency group
    10. 25.4.3 Writing the consistency group
    11. 25.5 Time consistent recovery
    12. 25.6 z/OS Global Mirror recovery process
  35. Chapter 26. z/OS Global Mirror scalability
    1. 26.1 z/OS Global Mirror session organization
    2. 26.2 Enhanced readers versus single reader
    3. 26.3 Write pacing
    4. 26.4 Workload-based write pacing
  36. Chapter 27. Managing z/OS Global Mirror
    1. 27.1 GDPS and RCMF
    2. 27.2 Automation
    3. 27.3 JCL or REXX generation
  37. Part 7 Solutions
  38. Chapter 28. IBM GDPS
    1. 28.1 GDPS offerings
    2. 28.1.1 GDPS Metro overview
    3. 28.1.2 GDPS Metro and HyperSwap
    4. 28.1.3 GDPS Virtual Appliance overview
    5. 28.1.4 GDPS Logical Corruption Protection Manager
    6. 28.1.5 GDPS Global - GM overview
    7. 28.1.6 GDPS 3-site solution overview
    8. 28.1.7 GDPS 4-site solution overview
  39. Chapter 29. IBM Copy Services Manager
    1. 29.1 Copy Services Manager overview
    2. 29.1.1 Why Copy Services Manager is needed
    3. 29.1.2 What Copy Services Manager provides
    4. 29.1.3 Copy Services Manager reliability, availability, and serviceability
    5. 29.2 Copy Services Manager terminology
    6. 29.2.1 Copy set
    7. 29.2.2 Session
    8. 29.2.3 Location
    9. 29.2.4 Volume types in a copy set
    10. 29.3 DS8000 specific information
    11. 29.3.1 PPRC paths
    12. 29.3.2 DS8000 connectivity
    13. 29.3.3 Metro Mirror heartbeat
    14. 29.4 Copy Services Manager interfaces
    15. 29.4.1 Copy Services Manager GUI
    16. 29.4.2 Copy Services Manager CLI
    17. 29.4.3 RESTful API
  40. Chapter 30. z/OS HyperSwap
    1. 30.1 z/OS HyperSwap overview
    2. 30.1.1 Benefits and positioning
    3. 30.1.2 Sources of information
    4. 30.1.3 Setup
    5. 30.2 z/OS HyperSwap sequence
  41. Chapter 31. VMware Site Recovery Manager
    1. 31.1 Introduction
  42. Part 8 MultiSite configurations
  43. Chapter 32. Metro/Global Mirror overview
    1. 32.1 Metro/Global Mirror overview
    2. 32.1.1 Metro Mirror and Global Mirror: Comparison
    3. 32.1.2 Metro/Global Mirror design objectives
    4. 32.2 Metro/Global Mirror processes
  44. Chapter 33. Metro/Global Mirror configuration and setup
    1. 33.1 Metro/Global Mirror configuration
    2. 33.1.1 Metro/Global Mirror with additional Global Mirror environments
    3. 33.1.2 Metro/Global Mirror with multiple storage systems
    4. 33.2 Architectural Metro/Global Mirror example
    5. 33.3 Initial setup of Metro/Global Mirror
    6. 33.3.1 Establish PPRC paths
    7. 33.3.2 Establish Global Copy from H2 to H3
    8. 33.3.3 Establish Metro Mirror from H1 to H2
    9. 33.3.4 Establish FlashCopy at H3
    10. 33.3.5 Create the Global Mirror sessions and add volumes
    11. 33.3.6 Start Global Mirror at H2
    12. 33.4 Migrating from Metro Mirror to Metro/Global Mirror
    13. 33.5 Preferred practices for setting up Metro/Global Mirror
  45. Chapter 34. Metro/Global Mirror operations
    1. 34.1 Overview
    2. 34.2 General considerations for storage failover
    3. 34.3 Freezing and unfreezing Metro Mirror volumes
    4. 34.4 Checking consistency at H3
    5. 34.5 Setting up an additional Global Mirror from H3
    6. 34.5.1 Cleaning up the remaining Metro Mirror relationships
    7. 34.5.2 Create Global Copy pairs from H3 to H2
    8. 34.5.3 Create FlashCopy relationships at H2
    9. 34.5.4 Create Global Mirror at H3
  46. Chapter 35. Metro/Global Mirror recovery scenarios
    1. 35.1 Overview
    2. 35.2 Recovery of the production environment at H2
    3. 35.3 Recovery of the production environment at H3
    4. 35.3.1 Stop I/O at H1
    5. 35.3.2 Terminate Global Mirror
    6. 35.3.3 Terminate Global Copy
    7. 35.3.4 Failover Metro Mirror to H2
    8. 35.3.5 Establish Global Copy from H3 to H2
    9. 35.3.6 Start I/O at H3
    10. 35.4 Returning the production environment from H3 to H1
    11. 35.4.1 Stop I/O at H3
    12. 35.4.2 Failback Metro Mirror from H2 to H1
    13. 35.4.3 Terminate Global Copy from H3 to H2
    14. 35.4.4 Failover to H1
    15. 35.4.5 Failback Metro Mirror from H1 to H2
    16. 35.4.6 Create Global Copy from H2 to H3
    17. 35.4.7 Start I/O
    18. 35.4.8 Start Global Mirror or adding volumes to the session
  47. Chapter 36. Metro/Global Mirror disaster recovery test scenarios
    1. 36.1 Overview
    2. 36.2 Providing consistency with Metro Mirror freeze
    3. 36.2.1 Disaster recovery test at the intermediate H2 site
    4. 36.2.2 Disaster recovery test at the remote H3 site
    5. 36.3 Providing consistency with Global Mirror
    6. 36.3.1 Stop Global Mirror
    7. 36.3.2 Suspend Global Copy from H2 to H3
    8. 36.3.3 Failing over Global Copy to H3
    9. 36.3.4 Fast reversal of FlashCopy from the J3 to H3 volumes
    10. 36.3.5 Establish FlashCopy from the H3 volumes to the practice I3 volumes
    11. 36.3.6 Failback Global Copy from H2 to H3
    12. 36.3.7 Restart Global Mirror
    13. 36.3.8 Start I/O at the disaster recovery host
  48. Chapter 37. Metro/Global Mirror incremental resynchronization
    1. 37.1 Overview
    2. 37.1.1 Functional description
    3. 37.1.2 Options for DS CLI
    4. 37.2 Setting up Metro/Global Mirror with Incremental Resync
    5. 37.3 Incremental Resync recovery scenarios
    6. 37.3.1 Failure at the local H1 site
    7. 37.3.2 Failure at the intermediate H2 site
    8. 37.4 Restore original Metro/Global Mirror configuration
    9. 37.4.1 Clean up the remaining components at H2
    10. 37.4.2 Failback Global Copy from the H3 to H2
    11. 37.4.3 Start Incremental Resync at H1
    12. 37.4.4 Stop Global Mirror at H1 and suspend Global Copy
    13. 37.4.5 Stop Global Copy from H1 to H3 at H3
    14. 37.4.6 Reverse Global Copy to run from H2 to H3
    15. 37.4.7 Create Metro Mirror with Incremental Resync at H1
    16. 37.4.8 Start Global Mirror at H2
    17. 37.4.9 Failure at remote H3 site
    18. 37.5 Convert Global Mirror to Metro/Global Mirror
    19. 37.5.1 Establish PPRC paths
    20. 37.5.2 Start Global Copy from H3 to H2
    21. 37.5.3 Start incremental resynchronization at H1
    22. 37.5.4 Terminate Global Mirror and suspend Global Copy at H1
    23. 37.5.5 Terminate Global Copy at target H3
    24. 37.5.6 Reverse Global Copy to run from H2 to H3
    25. 37.5.7 Start Metro Mirror from H1 to H2
    26. 37.5.8 Start Global Mirror at H2
  49. Chapter 38. Multiple Target PPRC overview
    1. 38.1 Multiple Target PPRC overview
    2. 38.2 Positioning
    3. 38.3 Licensing requirements and restrictions
    4. 38.4 Software considerations
    5. 38.5 Terminology
  50. Chapter 39. Multiple Target PPRC topologies
    1. 39.1 Multiple Target PPRC topologies
    2. 39.2 Two Metro Mirror relationships
    3. 39.3 Metro Mirror and Global Mirror
    4. 39.4 Cascaded Metro Mirror/Global Mirror
    5. 39.5 Metro Mirror and Global Copy
    6. 39.6 Global Copy plus Global Mirror
    7. 39.7 Metro/Global Mirror plus Metro Mirror
    8. 39.8 z/OS Global Mirror and two Metro Mirror pairs
  51. Chapter 40. Multiple Target PPRC architecture and design
    1. 40.1 Multiple Target PPRC pairs
    2. 40.2 Cascaded PPRC after Multiple Target PPRC failover
    3. 40.3 Multiple Target Incremental Resynchronization
    4. 40.3.1 Multiple Target Incremental Resynchronization pairs
    5. 40.3.2 Delayed creation of MTIR pairs
    6. 40.3.3 MTIR change recording
    7. 40.3.4 Synchronizing MTIR pairs
    8. 40.4 PPRC path states
    9. 40.4.1 Effects of freeze on path state
    10. 40.4.2 Effects of failover on path state
  52. Chapter 41. Implementing a two Metro Mirror topology
    1. 41.1 Overview of a two Metro Mirror topology
    2. 41.2 Creating a two Metro Mirror topology
    3. 41.2.1 Terms used in examples
    4. 41.2.2 Establish PPRC paths
    5. 41.2.3 Create H1:H2 Metro Mirror pairs
    6. 41.2.4 Establish H1:H3 pairs
    7. 41.3 Outage at H2 or H3
    8. 41.4 Outage at H1 site
    9. 41.4.1 Recover at H2
    10. 41.4.2 Start replication H2:H3
    11. 41.4.3 H1 recovered
    12. 41.5 Return production to H1
    13. 41.5.1 Move host systems to H1
    14. 41.5.2 Start H1:H2 and H1:H3 replication
    15. 41.6 Copy Services Manager
  53. Chapter 42. Implementing a Metro Mirror and Global Mirror topology
    1. 42.1 Overview of a Metro Mirror and Global Mirror topology
    2. 42.2 Creating a Metro Mirror and Global Mirror topology
    3. 42.2.1 Terms used in examples
    4. 42.2.2 Establish PPRC Paths
    5. 42.2.3 Create H1:H2 Metro Mirror pairs
    6. 42.2.4 Create H1:H3 Global Copy pairs
    7. 42.2.5 Create FlashCopy H3:J3
    8. 42.2.6 Create and start Global Mirror session
    9. 42.3 Outage at H3
    10. 42.4 Outage at H2
    11. 42.5 Outage at H1
    12. 42.5.1 Recover at H2
    13. 42.5.2 H1 recovered
    14. 42.6 Scripts for managing Metro Mirror/Global Mirror
  54. Chapter 43. Implementing a Global Copy plus Global Mirror topology
    1. 43.1 Overview of Global Copy plus Global Mirror topology
    2. 43.2 Creating a Global Copy plus Global Mirror topology
    3. 43.2.1 Establish PPRC paths
    4. 43.2.2 Create H1:H2 Global Copy pairs
    5. 43.2.3 Create H1:H3 Global Mirror
    6. 43.3 Outage at Global Copy secondary H2
    7. 43.4 Outage at Global Mirror H3
    8. 43.4.1 Start Global Mirror H1:H2
    9. 43.4.2 H3 recovered
    10. 43.5 Outage at H1
    11. 43.5.1 Recover at Global Mirror remote H3 site
    12. 43.5.2 Restore Global Mirror disaster recovery capability
    13. 43.5.3 Start Global Mirror H3:H2
    14. 43.5.4 H1 recovered
  55. Chapter 44. Implementing a Metro/Global Mirror and Metro Mirror topology
    1. 44.1 Overview of Metro/Global Mirror and Metro Mirror topology
    2. 44.2 Scenario: Outage at primary site H1
    3. 44.2.1 Freeze H1:H2 and H1:H3
    4. 44.2.2 Failover H3:H1
    5. 44.2.3 Start Metro Mirror H3:H2
    6. 44.2.4 H1 recovered
  56. Chapter 45. MultiTarget PPRC with cascaded Metro/Global Mirror
    1. 45.1 Cascaded Metro/Global Mirror topology
    2. 45.2 Outage at H3
    3. 45.3 Outage at H2
    4. 45.4 Outage at H1
    5. 45.4.1 Terms used in this example
    6. 45.4.2 Recover at H2
    7. 45.4.3 H1 recovered
    8. 45.4.4 Return production to H1
    9. 45.4.5 Start replication H1:H2
    10. 45.5 Cascaded Metro/Global Mirror and Multiple Target PPRC Metro/Global Mirror
  57. Chapter 46. Using Multiple Target PPRC for migration
    1. 46.1 General considerations
    2. 46.2 Replacement of Metro Mirror secondary
    3. 46.2.1 Requirements
    4. 46.2.2 Terms used in examples
    5. 46.2.3 Initial configuration
    6. 46.2.4 Installation of new DS8000 at H2’
    7. 46.2.5 PPRC paths H1:H2’
    8. 46.2.6 Create H1:H2’ Metro Mirror pairs
    9. 46.2.7 Monitor for H1:H2’ full duplex
    10. 46.2.8 Remove H1:H2
    11. 46.3 Replacement of Metro Mirror primary
    12. 46.3.1 Requirements
    13. 46.3.2 Terms used in examples
    14. 46.3.3 Initial configuration
    15. 46.3.4 Installation of new DS8000 at H1’
    16. 46.3.5 Start Metro Mirror H1:H1’
    17. 46.3.6 Monitor for H1:H1’ full duplex
    18. 46.3.7 Monitor out of sync tracks for H1’:H2 and H2:H1’
    19. 46.3.8 Move production to H1’
    20. 46.3.9 Start replication H1’:H2
    21. 46.3.10 Remove Metro Mirror pairs for H1
    22. 46.3.11 Remove PPRC paths for H1
    23. 46.4 Replacement of Metro Mirror primary, alternative method
    24. 46.4.1 Initial configuration
    25. 46.4.2 Move production to H2
    26. 46.4.3 Installation of new DS8000 at H1’
    27. 46.4.4 Start Metro Mirror H2:H1’
    28. 46.4.5 Remove H2:H1
    29. 46.4.6 Move production back to H1’
  58. Chapter 47. Multi-site replication scenario examples
    1. 47.1 Data migration with double cascading
    2. 47.2 A 4-site scenario with Metro/Global Mirror and Global Copy
  59. Chapter 48. DS command-line interface
    1. 48.1 User accounts
    2. 48.2 DS CLI profile
    3. 48.3 DS CLI command modes
    4. 48.4 DS CLI Copy Services command structure
  60. Appendix A. z/OS concurrent copy function
    1. Concurrent copy function characteristics and usage
    2. Overview of the concurrent copy function features
  61. Appendix B. SNMP notifications
    1. SNMP overview
    2. Physical connection events
    3. Remote Mirror and Copy events
  62. Related publications
    1. IBM Redbooks
    2. Online resources
    3. Help from IBM
  63. Back cover
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