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IBM System Storage DS8000 Copy Services for IBM System z

Book Description

In today’s highly competitive and real-time environment, the ability to manage all IT operations on a continuous basis makes the creation of copies and backups of data a core requirement for any IT deployment. Furthermore, it is necessary to provide proactive efficient disaster recovery strategies that can ensure continuous data availability for business operations. The Copy Services functions available with the IBM® System Storage® DS8000® are part of these strategies.

This IBM Redbooks® publication helps you plan, install, configure, and manage the Copy Services functions of the DS8000 when they are used in Open System and IBM i environments. This book provides the details necessary to implement and control each of the Copy Services functions. Numerous examples illustrate how to use the various interfaces with each of the Copy Services.

This book also covers the 3-site Metro/Global Mirror with Incremental Resync feature and introduces the IBM Tivoli® Storage Productivity Center for Replication solution.

This book should be read with The IBM System Storage DS8000 Series: Architecture and Implementation, SG24-8886. There is also a companion book, IBM System Storage DS8000 Copy Services for IBM System z, SG24-6787, which supports the configuration of the Copy Services functions in IBM z/OS® environments.

Table of Contents

  1. Front cover
  2. Notices
    1. Trademarks
  3. Preface
    1. The team who wrote this book
    2. Special thanks
    3. Now you can become a published author, too!
    4. Comments welcome
    5. Stay connected to IBM Redbooks
  4. Summary of changes
    1. February 2013, Seventh Edition
  5. Part 1 Overview
  6. Chapter 1. Introduction
    1. 1.1 Point-in-time copy functions
      1. 1.1.1 FlashCopy
      2. 1.1.2 FlashCopy SE
      3. 1.1.3 Remote Pair FlashCopy (Preserve Mirror)
    2. 1.2 Remote Mirror and Copy functions
      1. 1.2.1 Metro Mirror
      2. 1.2.2 Global Mirror
      3. 1.2.3 3-site Metro/Global Mirror with Incremental Resync
    3. 1.3 Copy Services functions unique to z/OS
      1. 1.3.1 z/OS Global Mirror
      2. 1.3.2 z/OS Global Mirror and Metro Mirror across three sites
      3. 1.3.3 IBM z/OS Metro/Global Mirror Incremental Resync (RMZ Resync)
  7. Chapter 2. Copy Services architecture
    1. 2.1 Introduction to the Copy Services structure
      1. 2.1.1 Management console defined
      2. 2.1.2 Storage Unit defined
      3. 2.1.3 Storage Facility Image (SFI) defined
      4. 2.1.4 Storage Complex defined
    2. 2.2 The structure of Copy Services management
      1. 2.2.1 Communication path for Copy Services
      2. 2.2.2 Differences between the DS CLI and the DS GUI
    3. 2.3 Easy Tier and I/O Priority Manager
    4. 2.4 System z communication path for Copy Services
  8. Chapter 3. Licensing
    1. 3.1 Licenses
      1. 3.1.1 Considerations for a 2-site Metro Mirror configuration
      2. 3.1.2 Considerations for a 2-site Global Mirror configuration
      3. 3.1.3 Considerations for a 2-site Global Copy
      4. 3.1.4 Additional information for Metro/Global Mirror licensing
      5. 3.1.5 Considerations for a 2-site z/OS Global Mirror (XRC) configuration
      6. 3.1.6 Considerations for a 3-site z/OS Metro/Global Mirror configuration
      7. 3.1.7 DS GUI support
    2. 3.2 Authorized level
      1. 3.2.1 Licensing
      2. 3.2.2 Charging example
  9. Part 2 Interfaces
  10. Chapter 4. Copy Services interfaces overview
    1. 4.1 DS8000 interface network components
  11. Chapter 5. DS GUI
    1. 5.1 Accessing the DS GUI
    2. 5.2 Defining another DS8000 Storage Complex
  12. Chapter 6. DS Command-Line Interface
    1. 6.1 Introduction and functionality
      1. 6.1.1 User accounts
    2. 6.2 DS CLI profile
      1. 6.2.1 Simplifying the DS CLI command syntax
      2. 6.2.2 Creating a password file
    3. 6.3 Command modes
      1. 6.3.1 Single-shot command mode
      2. 6.3.2 Interactive command mode
      3. 6.3.3 Script command mode
    4. 6.4 Return codes
    5. 6.5 User assistance
      1. 6.5.1 Man pages
    6. 6.6 Copy Services command structure
  13. Chapter 7. System z interfaces
    1. 7.1 System z interfaces
      1. 7.1.1 Operating system alternatives
    2. 7.2 TSO
    3. 7.3 ICKDSF
    4. 7.4 DFSMSdss
    5. 7.5 The ANTRQST macro
    6. 7.6 z/VM commands
    7. 7.7 z/VSE commands
    8. 7.8 z/TPF commands
    9. 7.9 IBM System Storage FlashCopy Manager and PPRC Manager
  14. Part 3 FlashCopy
  15. Chapter 8. FlashCopy overview
    1. 8.1 Operational environments
    2. 8.2 Terminology
    3. 8.3 Basic concepts
      1. 8.3.1 Full volume copy
      2. 8.3.2 No copy option
    4. 8.4 FlashCopy in combination with other Copy Services
      1. 8.4.1 FlashCopy with Metro Mirror and Global Copy
      2. 8.4.2 Remote Pair FlashCopy
      3. 8.4.3 FlashCopy and Global Mirror
    5. 8.5 FlashCopy for z/OS data sets
  16. Chapter 9. FlashCopy options
    1. 9.1 Multiple relationship FlashCopy
    2. 9.2 Consistency Group FlashCopy
    3. 9.3 FlashCopy target as a Metro Mirror or Global Copy primary
    4. 9.4 Incremental FlashCopy: Refresh target volume
    5. 9.5 Incremental FlashCopy: Reverse restore
    6. 9.6 Remote FlashCopy
    7. 9.7 Remote Pair FlashCopy (Preserve Mirror)
    8. 9.8 Persistent FlashCopy
    9. 9.9 Fast reverse restore
    10. 9.10 FlashCopy SE
    11. 9.11 Data set FlashCopy
    12. 9.12 Options and interfaces
  17. Chapter 10. FlashCopy interfaces
    1. 10.1 FlashCopy management interfaces: Overview
      1. 10.1.1 FlashCopy control with the interfaces
    2. 10.2 DS CLI and DS GUI: Commands and options
      1. 10.2.1 Local FlashCopy management
      2. 10.2.2 Remote FlashCopy management
    3. 10.3 System z provided interfaces
    4. 10.4 Local FlashCopy using the DS CLI
      1. 10.4.1 Parameters that are used with local FlashCopy commands
      2. 10.4.2 Examples of local FlashCopy commands
      3. 10.4.3 FlashCopy consistency groups
    5. 10.5 Remote FlashCopy using the DS CLI
      1. 10.5.1 Remote FlashCopy commands
      2. 10.5.2 Parameters that are used in Remote FlashCopy commands
    6. 10.6 Remote Pair FlashCopy using DS CLI
      1. 10.6.1 Remote Pair FlashCopy commands
      2. 10.6.2 Parameters that are used in Remote Pair FlashCopy commands
    7. 10.7 FlashCopy management using the DS GUI
      1. 10.7.1 Initiating a FlashCopy relationship
      2. 10.7.2 Working with existing FlashCopy relationships
    8. 10.8 z/OS interfaces for local FlashCopy
      1. 10.8.1 FlashCopy using DFSMSdss
      2. 10.8.2 FlashCopy using TSO commands
      3. 10.8.3 FlashCopy using ICKDSF
      4. 10.8.4 FlashCopy using z/VM CP commands
      5. 10.8.5 FlashCopy using z/VSE IXFP commands
  18. Chapter 11. IBM FlashCopy SE
    1. 11.1 FlashCopy SE overview
    2. 11.2 Track-Space-Efficient volumes
    3. 11.3 Repository for Track-Space-Efficient (TSE) volumes
      1. 11.3.1 Capacity planning for FlashCopy SE
      2. 11.3.2 Creating a repository for Track-Space-Efficient (TSE) volumes
      3. 11.3.3 Creating Track-Space-Efficient volumes
    4. 11.4 Performing FlashCopy SE operations
      1. 11.4.1 Creation and resynchronization of FlashCopy SE relationships
      2. 11.4.2 Removing FlashCopy relationships and releasing space
      3. 11.4.3 Other FlashCopy SE operations
      4. 11.4.4 Working with Track-Space-Efficient volumes
      5. 11.4.5 SMS support
      6. 11.4.6 Monitoring repository space and out-of-space conditions
  19. Chapter 12. Remote Pair FlashCopy
    1. 12.1 Remote Pair FlashCopy overview
      1. 12.1.1 Features of Remote Pair FlashCopy
      2. 12.1.2 Considerations
      3. 12.1.3 Software support
    2. 12.2 Remote Pair FlashCopy implementation and usage
      1. 12.2.1 Terminology
      2. 12.2.2 Preparing for Remote Pair FlashCopy
      3. 12.2.3 Remote Pair FlashCopy establishment
      4. 12.2.4 Remote Pair FlashCopy withdrawal
    3. 12.3 Using Remote Pair FlashCopy in a z/OS environment
      1. 12.3.1 DFSMSdss
      2. 12.3.2 Remote Pair FlashCopy using TSO
      3. 12.3.3 ICKDSF
      4. 12.3.4 ANTRQST
      5. 12.3.5 DS CLI
      6. 12.3.6 Remote Pair FlashCopy with DS GUI
    4. 12.4 Remote Pair FlashCopy and SMS volume selection
  20. Chapter 13. FlashCopy performance
    1. 13.1 FlashCopy performance overview
      1. 13.1.1 Distribution of the workload: Location of source and target volumes
      2. 13.1.2 LSS/LCU versus rank: Considerations
      3. 13.1.3 Rank characteristics
    2. 13.2 FlashCopy establish performance
    3. 13.3 Background copy performance
    4. 13.4 FlashCopy impact on applications
    5. 13.5 Performance planning for IBM FlashCopy SE
    6. 13.6 FlashCopy scenarios
      1. 13.6.1 Scenario #1: Backup to disk
      2. 13.6.2 Scenario #2: Backup to tape
      3. 13.6.3 Scenario #3: IBM FlashCopy SE
      4. 13.6.4 Scenario #4: FlashCopy during peak application activity
      5. 13.6.5 Scenario #5: Ranks reserved for FlashCopy
  21. Chapter 14. FlashCopy examples
    1. 14.1 Creating a test system or integration system
      1. 14.1.1 One-time test system
      2. 14.1.2 Multiple setup of a test system with the same contents
    2. 14.2 Creating a backup
      1. 14.2.1 Creating a FlashCopy for backup purposes without a volume copy
      2. 14.2.2 Using IBM FlashCopy SE for backup purposes
      3. 14.2.3 Incremental FlashCopy for backup purposes
      4. 14.2.4 Using a target volume to restore its contents back to the source
  22. Chapter 15. FlashCopy usage with z/OS products
    1. 15.1 Using FlashCopy for COPY, DUMP, and RESTORE
    2. 15.2 Using FlashCopy for DEFRAG
    3. 15.3 DFSMShsm Fast Replication
    4. 15.4 Using FlashCopy with DB2 for z/OS
  23. Part 4 Metro Mirror
  24. Chapter 16. Metro Mirror overview
    1. 16.1 Metro Mirror overview
    2. 16.2 Metro Mirror volume state
    3. 16.3 Data consistency
    4. 16.4 Rolling disaster
    5. 16.5 Automation and management
  25. Chapter 17. Metro Mirror operation and configuration
    1. 17.1 Basic Metro Mirror operation
      1. 17.1.1 Establishing a Metro Mirror pair
      2. 17.1.2 Suspending a Metro Mirror pair
      3. 17.1.3 Resuming a Metro Mirror pair
      4. 17.1.4 Removing a Metro Mirror pair
    2. 17.2 Metro Mirror paths and links
      1. 17.2.1 Fibre Channel/Physical links
      2. 17.2.2 Logical paths
    3. 17.3 Consistency Group function
      1. 17.3.1 Data consistency and dependent writes
      2. 17.3.2 Consistency Group function: How it works
      3. 17.3.3 Critical attribute
      4. 17.3.4 Consistency Group and critical mode combination
    4. 17.4 Failover and failback
  26. Chapter 18. Metro Mirror implementation considerations
    1. 18.1 Bandwidth
      1. 18.1.1 Peak bandwidth requirements
    2. 18.2 Performance
      1. 18.2.1 Managing the load
      2. 18.2.2 Resource Management Facility
      3. 18.2.3 Initial synchronization
      4. 18.2.4 Distance
    3. 18.3 Scalability
    4. 18.4 Symmetrical configuration
    5. 18.5 Volume selection
    6. 18.6 Multiple Subchannel Set (MSS) support
    7. 18.7 Hardware requirements
    8. 18.8 Interoperability
  27. Chapter 19. Metro Mirror interfaces
    1. 19.1 Metro Mirror interfaces: Overview
      1. 19.1.1 Similar functions of the interfaces for Metro Mirror management
    2. 19.2 TSO commands for Metro Mirror management
      1. 19.2.1 Commands: Overview
      2. 19.2.2 CESTPATH
      3. 19.2.3 CESTPAIR
      4. 19.2.4 CDELPAIR
      5. 19.2.5 CDELPATH
      6. 19.2.6 CGROUP
      7. 19.2.7 CQUERY
      8. 19.2.8 CRECOVER
      9. 19.2.9 CSUSPEND
      10. 19.2.10 Batch execution of Metro Mirror TSO commands
    3. 19.3 ICKDSF
      1. 19.3.1 Metro Mirror management with ICKDSF
      2. 19.3.2 PPRCOPY ESTPATH
      3. 19.3.3 PPRCOPY ESTPAIR
      4. 19.3.4 PPRCOPY DELPAIR
      5. 19.3.5 PPRCOPY DELPATH
      6. 19.3.6 PPRCOPY FREEZE
      7. 19.3.7 PPRCOPY RUN
      8. 19.3.8 PPRCOPY QUERY and QUERY PATHS
      9. 19.3.9 PPRCOPY RECOVER
      10. 19.3.10 PPRCOPY SUSPEND
      11. 19.3.11 Refreshing the VTOC
    4. 19.4 DS Command-Line Interface
    5. 19.5 DS GUI
    6. 19.6 ANTRQST API
  28. Chapter 20. Metro Mirror examples
    1. 20.1 TSO command examples
      1. 20.1.1 Querying a Metro Mirror primary
      2. 20.1.2 Querying a Metro Mirror Secondary
      3. 20.1.3 Establishing a Metro Mirror pair
      4. 20.1.4 Suspending a Metro Mirror pair
      5. 20.1.5 Resynchronization of a suspended volume pair
      6. 20.1.6 Failover and failback
    2. 20.2 Open Systems volumes with TSO commands
      1. 20.2.1 Querying an Open Systems volume
      2. 20.2.2 Establishing a Metro Mirror Pair with Open Systems volumes
    3. 20.3 ICKDSF command examples
      1. 20.3.1 Displaying the Fibre Channel Connection Information Table
      2. 20.3.2 Defining and querying a Metro Mirror path
    4. 20.4 DS CLI command examples
      1. 20.4.1 Setting up a Metro Mirror environment with DS CLI
      2. 20.4.2 Removing a Metro Mirror environment with DS CLI
      3. 20.4.3 Managing a Metro Mirror environment with DS CLI
    5. 20.5 DS GUI examples
      1. 20.5.1 Defining another DS8000 connection with the DS GUI
      2. 20.5.2 Establishing paths with the DS GUI
      3. 20.5.3 Adding paths with the DS GUI
      4. 20.5.4 Deleting paths with the DS GUI
      5. 20.5.5 Creating Metro Mirror pairs with the DS GUI
      6. 20.5.6 Changing LCU options with the DS GUI
  29. Part 5 Global Copy
  30. Chapter 21. Global Copy overview
    1. 21.1 Global Copy overview
    2. 21.2 Volume states and change logic
    3. 21.3 Global Copy positioning
  31. Chapter 22. Global Copy options and configuration
    1. 22.1 Global Copy basic options
      1. 22.1.1 Establishing a Global Copy pair
      2. 22.1.2 Suspending a Global Copy pair
      3. 22.1.3 Resuming a Global Copy pair
      4. 22.1.4 Terminating a Global Copy pair
      5. 22.1.5 Converting a Global Copy pair to Metro Mirror
    2. 22.2 Creating a consistent point-in-time copy
    3. 22.3 Cascading
    4. 22.4 Hardware requirements
      1. 22.4.1 License
      2. 22.4.2 Interoperability
      3. 22.4.3 Global Copy connectivity: Ports, paths, and links
      4. 22.4.4 LSS and consistency group considerations
    5. 22.5 Bandwidth considerations
    6. 22.6 Distance considerations
      1. 22.6.1 Fibre Channel Switches (FICON Switches)
      2. 22.6.2 Channel extender
      3. 22.6.3 Dense Wavelength Division Multiplexor (DWDM)
    7. 22.7 Other planning considerations
  32. Chapter 23. Global Copy interfaces
    1. 23.1 Global Copy interfaces: Overview
      1. 23.1.1 Similar functions of the interfaces for Global Copy management
    2. 23.2 TSO commands for Global Copy management
      1. 23.2.1 Commands: Summary and usage
      2. 23.2.2 CESTPAIR
      3. 23.2.3 CESTPATH
      4. 23.2.4 CDELPAIR
      5. 23.2.5 CDELPATH
      6. 23.2.6 CGROUP
      7. 23.2.7 CQUERY
      8. 23.2.8 CRECOVER
      9. 23.2.9 CSUSPEND
      10. 23.2.10 Batch execution of Global Copy TSO commands
    3. 23.3 ICKDSF utility for Global Copy management
    4. 23.4 Using DS CLI for Global Copy operations
      1. 23.4.1 Defining Global Copy paths
      2. 23.4.2 Managing Global Copy pairs
    5. 23.5 Using DS GUI for Global Copy operations
      1. 23.5.1 Defining another DS8000 Storage Complex
      2. 23.5.2 Establishing paths with the DS Storage Manager GUI
      3. 23.5.3 Adding paths with the DS GUI
      4. 23.5.4 Deleting paths with the DS GUI
      5. 23.5.5 Establishing Global Copy pairs using DS GUI
      6. 23.5.6 Managing existing Global Copy pairs
  33. Chapter 24. Global Copy examples
    1. 24.1 Defining and managing Global Copy pairs using TSO
    2. 24.2 Go-to-sync operations
      1. 24.2.1 Go-to-sync using TSO
      2. 24.2.2 Go-to-sync using ICKDSF
      3. 24.2.3 Go-to-sync using the DS GUI
      4. 24.2.4 Go-to-sync using the DS CLI
      5. 24.2.5 Displaying out-of-sync tracks
    3. 24.3 Global Copy cascading
    4. 24.4 Managing data migration with Global Copy
      1. 24.4.1 Migration from simplex volumes
      2. 24.4.2 Migration from secondary volumes
  34. Chapter 25. Global Copy performance and scalability
    1. 25.1 Performance
      1. 25.1.1 Peak bandwidth requirements
    2. 25.2 Scalability
      1. 25.2.1 Adding capacity overview
  35. Part 6 Global Mirror
  36. Chapter 26. Global Mirror overview
    1. 26.1 Terminology that is used in Global Mirror environments
    2. 26.2 Asynchronous data replication
      1. 26.2.1 Asynchronous data replication and dependent writes
    3. 26.3 Basic concepts of Global Mirror
    4. 26.4 Setting up a Global Mirror session
      1. 26.4.1 A simple configuration
      2. 26.4.2 Establishing connectivity to a secondary site
      3. 26.4.3 Creating Global Copy relationship between primary and secondary volume
      4. 26.4.4 Introducing FlashCopy
      5. 26.4.5 Defining a Global Mirror session
      6. 26.4.6 Populating a Global Mirror session with volumes
      7. 26.4.7 Starting a Global Mirror session
    5. 26.5 Consistency groups
      1. 26.5.1 Consistency group formation
      2. 26.5.2 Consistency group parameters
    6. 26.6 Multiple Global Mirror sessions
  37. Chapter 27. Global Mirror options and configuration
    1. 27.1 PPRC paths and links
      1. 27.1.1 Fibre Channel links
      2. 27.1.2 Logical paths
    2. 27.2 Bandwidth
    3. 27.3 LSS design
    4. 27.4 Global Mirror auxiliary storage system considerations
    5. 27.5 Creating a Global Mirror environment
    6. 27.6 Modifying a Global Mirror session
      1. 27.6.1 Adding volumes to or removing volumes from a Global Mirror session
      2. 27.6.2 Adding or removing storage systems or LSSs
      3. 27.6.3 Modifying Global Mirror session parameters
      4. 27.6.4 Global Mirror environment topology changes
    7. 27.7 Global Mirror with multiple storage systems
    8. 27.8 Host connectivity at primary and secondary site
      1. 27.8.1 Multisite host connectivity
      2. 27.8.2 Single-site host connectivity
  38. Chapter 28. Global Mirror interfaces
    1. 28.1 Global Mirror interfaces: Overview
    2. 28.2 Different interfaces for the same function
      1. 28.2.1 DS Command-Line Interface
    3. 28.3 DS Storage Manager GUI
    4. 28.4 TSO
    5. 28.5 ICKDSF
      1. 28.5.1 z/OS
      2. 28.5.2 z/VM
      3. 28.5.3 z/VSE
  39. Chapter 29. Global Mirror performance and scalability
    1. 29.1 Performance aspects for Global Mirror
    2. 29.2 Performance considerations for network connectivity
      1. 29.2.1 Considerations for long-distance fabrics using FC
      2. 29.2.2 Considerations for long-distance fabrics using FC-IP
      3. 29.2.3 Considerations for host adapter usage
    3. 29.3 Global Mirror auxiliary storage system recommendations
    4. 29.4 Performance considerations at coordination time
    5. 29.5 Consistency group drain time
    6. 29.6 Remote storage system configuration
      1. 29.6.1 Logical configurations with classical FlashCopy
      2. 29.6.2 Logical configurations with Space-Efficient FlashCopy
    7. 29.7 Balancing the storage system configuration
    8. 29.8 Growth within Global Mirror configurations
  40. Chapter 30. Global Mirror examples
    1. 30.1 Global Mirror examples: Configuration
    2. 30.2 Setting up the Global Mirror environment using TSO
      1. 30.2.1 Defining paths
      2. 30.2.2 Establishing Global Copy volume pairs
      3. 30.2.3 Establishing FlashCopy relationships for Global Mirror
      4. 30.2.4 Defining the Global Mirror session
      5. 30.2.5 Populating the session with Global Copy primary volumes
      6. 30.2.6 Starting the Global Mirror session
      7. 30.2.7 Querying a Global Mirror session
      8. 30.2.8 Timing information
    3. 30.3 Primary site failure and recovery management with TSO
      1. 30.3.1 Primary site failure
      2. 30.3.2 Stopping a Global Mirror session
      3. 30.3.3 Failover from B to A volumes
      4. 30.3.4 Checking the Global Mirror FlashCopy status between the B and C volumes
      5. 30.3.5 Creating a data consistent set of B volumes
      6. 30.3.6 Creating a data consistent set of D volumes (optional)
      7. 30.3.7 Creating a data consistent set of C volumes
      8. 30.3.8 Preparing to return to the local site
      9. 30.3.9 Replicating the changes from B to A
      10. 30.3.10 Returning to the local site and resuming Global Mirror
    4. 30.4 Removing a Global Mirror environment using TSO
      1. 30.4.1 Stopping the Global Mirror session
      2. 30.4.2 Removing the volumes from the Global Mirror session
      3. 30.4.3 Deleting the Global Mirror session
      4. 30.4.4 Removing FlashCopy relationships
      5. 30.4.5 Deleting Global Copy volume pairs
      6. 30.4.6 Removing the paths
    5. 30.5 Setting up and managing the Global Mirror environment using ICKDSF
      1. 30.5.1 Defining paths
      2. 30.5.2 Establishing Global Copy pairs
      3. 30.5.3 Establishing FlashCopy relationships
      4. 30.5.4 Defining a Global Mirror session
      5. 30.5.5 Adding volumes to a session
      6. 30.5.6 Starting Global Mirror
      7. 30.5.7 Querying the Global Mirror session
      8. 30.5.8 Planned outage management using ICKDSF
      9. 30.5.9 Removing a Global Mirror environment using ICKDSF
      10. 30.5.10 Stopping the Global Mirror session
      11. 30.5.11 Removing volumes from a session
      12. 30.5.12 Withdrawing FlashCopy relationships
      13. 30.5.13 Deleting the Global Mirror session
      14. 30.5.14 Deleting Global Copy pairs
      15. 30.5.15 Removing Global Copy paths
      16. 30.5.16 Querying device information with ICKDSF
    6. 30.6 Setting up a Global Mirror environment with DS CLI
      1. 30.6.1 Preparing to work with the DS CLI
      2. 30.6.2 Creating paths
      3. 30.6.3 Creating Global Copy volume pairs
      4. 30.6.4 Creating FlashCopy relationships
      5. 30.6.5 Creating and starting the Global Mirror session
    7. 30.7 Controlling and querying Global Mirror with DS CLI
      1. 30.7.1 Querying the status of the paths
      2. 30.7.2 Querying the Global Copy pairs
      3. 30.7.3 Querying the FlashCopy pairs
      4. 30.7.4 Querying volumes in the session
      5. 30.7.5 Querying Global Mirror session information
      6. 30.7.6 Pausing a Global Mirror session
      7. 30.7.7 Resuming a Global Mirror session
      8. 30.7.8 Changing a Global Mirror session
    8. 30.8 Site switch basic operations using the DS CLI
      1. 30.8.1 Performing Global Copy failover
      2. 30.8.2 Performing Global Copy failback
      3. 30.8.3 Verifying the FlashCopy status between the B and C volumes
      4. 30.8.4 Creating a FlashCopy for backup (optional)
    9. 30.9 Removing the Global Mirror environment with the DS CLI
      1. 30.9.1 Ending Global Mirror processing
      2. 30.9.2 Removing the Global Mirror volumes and the session from each LSS
      3. 30.9.3 Removing FlashCopy pairs
      4. 30.9.4 Removing Global Copy pairs
      5. 30.9.5 Removing paths
    10. 30.10 Recovering from a suspended state after the FlashCopy SE repository fills
    11. 30.11 Multiple Global Mirror sessions within DS8700 and DS8800
      1. 30.11.1 Fail over Global Mirror session 20
      2. 30.11.2 Failing back GM session 20
      3. 30.11.3 Returning to Site 1 using GM session 20
    12. 30.12 Setting up a Global Mirror environment using the DS GUI
      1. 30.12.1 Creating paths
      2. 30.12.2 Creating Global Copy pairs
      3. 30.12.3 Creating FlashCopy relationships
      4. 30.12.4 Creating the Global Mirror session
    13. 30.13 Managing the Global Mirror environment with the DS GUI
      1. 30.13.1 Viewing settings and error information of the Global Mirror session
      2. 30.13.2 Viewing volume information in the Global Mirror session
      3. 30.13.3 Pausing a Global Mirror session
      4. 30.13.4 Resuming a Global Mirror session
      5. 30.13.5 Modifying a Global Mirror session
      6. 30.13.6 Adding paths
      7. 30.13.7 Changing the LSS options
      8. 30.13.8 Deleting paths
  41. Part 7 Metro/Global Mirror (MGM)
  42. Chapter 31. Metro/Global Mirror overview
    1. 31.1 Metro/Global Mirror overview
      1. 31.1.1 Metro Mirror and Global Mirror: Comparison
      2. 31.1.2 Metro/Global Mirror design objectives
    2. 31.2 Metro/Global Mirror processes
  43. Chapter 32. Metro/Global Mirror configuration and setup
    1. 32.1 Metro/Global Mirror configuration
      1. 32.1.1 Metro/Global Mirror with an additional Global Mirror setup
      2. 32.1.2 Metro/Global Mirror with multiple storage systems
      3. 32.1.3 Multiple consistency groups
    2. 32.2 Metro Global Mirror configuration example
    3. 32.3 Initial setup of Metro/Global Mirror
      1. 32.3.1 Identifying the ports for Remote Mirror
    4. 32.4 Going from Metro Mirror to Metro/Global Mirror
    5. 32.5 Preferred practices for setting up Metro/Global Mirror
  44. Chapter 33. Metro/Global Mirror operations
    1. 33.1 Overview
    2. 33.2 General considerations for storage failover
    3. 33.3 Freezing and unfreezing Metro Mirror volumes
    4. 33.4 Removing volumes from a session
    5. 33.5 Checking consistency at the remote site
    6. 33.6 Setting up an additional Global Mirror path from the remote site
  45. Chapter 34. Metro/Global Mirror recovery scenarios
    1. 34.1 Overview
    2. 34.2 Recovering the production environment at the intermediate site
    3. 34.3 Returning the production site to the local site from the intermediate site
    4. 34.4 Recovering the production environment at the remote site
    5. 34.5 Returning the production environment to the local site from the remote site
  46. Chapter 35. Metro/Global Mirror disaster recovery test scenarios
    1. 35.1 Overview
    2. 35.2 Providing consistency with Metro Mirror freeze
      1. 35.2.1 Disaster recovery test at the intermediate site
      2. 35.2.2 Disaster recovery test at the remote site
    3. 35.3 Providing consistency using Global Mirror
  47. Chapter 36. Metro/Global Mirror incremental resynchronization
    1. 36.1 Overview
      1. 36.1.1 Functional description
      2. 36.1.2 Options for DS CLI
    2. 36.2 Setting up Metro/Global Mirror with Incremental Resync
      1. 36.2.1 Setup of Metro/Global Mirror with Incremental Resync
      2. 36.2.2 Going from Global Mirror to Metro/Global Mirror with Incremental Resync
    3. 36.3 Incremental Resync recovery scenarios
      1. 36.3.1 Local site fails
      2. 36.3.2 Local site is back
      3. 36.3.3 Intermediate site failure
      4. 36.3.4 Intermediate site is back
    4. 36.4 Swapping between the local and intermediate sites
  48. Chapter 37. Metro/Global Copy with Incremental Resync
    1. 37.1 Overview
    2. 37.2 Replacement of a Metro Mirror target system
    3. 37.3 Replacement of a Global Mirror target system
  49. Part 8 Solutions
  50. Chapter 38. z/OS Global Mirror solutions
    1. 38.1 z/OS Global Mirror overview
      1. 38.1.1 z/OS Global Mirror terms and processes
      2. 38.1.2 z/OS Global Mirror operation: Data flow
      3. 38.1.3 Metro z/OS Global Mirror operation: Data flow
      4. 38.1.4 How zGM maintains consistency
      5. 38.1.5 z/OS Global Mirror session organization
      6. 38.1.6 Time consistent recovery
      7. 38.1.7 Managing a z/OS Global Mirror environment
    2. 38.2 Additional z/OS Global Mirror scenarios
      1. 38.2.1 z/OS Metro/Global Mirror
      2. 38.2.2 z/OS Metro/Global Mirror Incremental Resync
  51. Chapter 39. Multi-site replication scenarios
    1. 39.1 Data migration with double cascading
    2. 39.2 A 4-site scenario with Metro/Global Mirror and Global Copy
  52. Chapter 40. Geographically Dispersed Parallel Sysplex overview
    1. 40.1 GDPS solution offerings
    2. 40.2 Components of a GDPS configuration
      1. 40.2.1 GDPS/PPRC overview
      2. 40.2.2 PPRC and HyperSwap
      3. 40.2.3 GDPS/XRC overview
      4. 40.2.4 GDPS/GM (Global Mirror) overview
      5. 40.2.5 GDPS 3-site solution overview
      6. 40.2.6 IBM Global Services offerings for GDPS
  53. Chapter 41. IBM Tivoli Storage Productivity Center for Replication
    1. 41.1 Tivoli Storage Productivity Center for Replication overview
      1. 41.1.1 Sources of information
      2. 41.1.2 Why Tivoli Storage Productivity Center for Replication is needed
      3. 41.1.3 What Tivoli Storage Productivity Center for Replication provides
      4. 41.1.4 Tivoli Storage Productivity Center for Replication reliability, availability, and serviceability
    2. 41.2 Tivoli Storage Productivity Center for Replication terminology
      1. 41.2.1 Copy set
      2. 41.2.2 Session
      3. 41.2.3 Location
      4. 41.2.4 Volume types in a copy set
      5. 41.2.5 Actions on sessions
    3. 41.3 DS8000 specific information
      1. 41.3.1 PPRC paths
      2. 41.3.2 DS8000 connectivity
      3. 41.3.3 Metro Mirror heartbeat
    4. 41.4 Tivoli Storage Productivity Center for Replication interfaces
      1. 41.4.1 Tivoli Storage Productivity Center for Replication GUI
      2. 41.4.2 Copy Services Manager CLI
  54. Chapter 42. FlashCopy Manager and PPRC Manager
    1. 42.1 Introduction to FlashCopy Manager and PPRC Manager
    2. 42.2 FlashCopy Manager overview
      1. 42.2.1 FlashCopy Manager solution description
      2. 42.2.2 FlashCopy Manager technical highlights
      3. 42.2.3 FlashCopy Manager requirements
      4. 42.2.4 Interoperability
      5. 42.2.5 Summary
    3. 42.3 PPRC Manager overview
      1. 42.3.1 PPRC Manager solution description
      2. 42.3.2 PPRC Manager technical highlights
      3. 42.3.3 Interoperability with FlashCopy Manager
      4. 42.3.4 Support for PPRC Consistency Group FREEZE
      5. 42.3.5 Support for many types of Remote Mirror and copy configurations
  55. Chapter 43. z/OS Basic HyperSwap
    1. 43.1 Basic HyperSwap overview
      1. 43.1.1 Benefits and positioning
      2. 43.1.2 Sources of information
      3. 43.1.3 Basic HyperSwap setup
    2. 43.2 Basic HyperSwap sequence
  56. Appendix A. Concurrent Copy
    1. Concurrent Copy characteristics and usage
    2. Overview of Concurrent Copy features
  57. Appendix B. SNMP notifications
    1. SNMP overview
    2. Physical connection events
    3. Remote Mirror and Copy events
  58. Appendix C. Resource Groups
    1. Overview of Resource Groups
    2. Functional description
    3. Implementation examples
  59. Related publications
    1. IBM Redbooks
    2. Other publications
    3. Online resources
    4. How to get IBM Redbooks
    5. Help from IBM
  60. Back cover