Document Outline

• XP7 Continuous Access Journal for Mainframe Systems User Guide
• Contents
• 1 Continuous Access Journal Z overview
  • Continuous Access Journal Z software
  • How Continuous Access Journal Z works
  • Hardware and software components
    • XP7 storage systems
    • Pair volumes
    • Journal volumes
    • Journals
    • Data path
    • Consistency groups and journals
    • Extended consistency groups
    • Remote Web Console
    • Business Continuity Manager
  • Reference Information
    • Overview of copy operations
      • Initial copy operation
      • Update copy operation
    • Read and write I/O during remote copy
    • Differential data management
    • S-VOL write option
    • S-VOL read option
    • Pair status
• 2 Requirements and specifications
  • System requirements
  • Business Continuity Manager specifications
    • SAID values for CESTPATH/YKBLDPTH
  • Command device
• 3 Planning volumes, XP7 systems
  • Plan and design workflow
  • Assessing business requirements for data recovery
    • Determining your RPO
  • Write-workload
    • Measuring write-workload
  • Data transfer speed considerations
    • RAID group configuration
    • Fibre-channel port configuration
  • Sizing journal volumes
  • Planning journals
  • Planning journal volumes
    • Host I/O time stamp
  • Planning pair volumes
    • Data and journal volume specifications
    • Duplicating VOLSERs
    • Maximum number of pairs allowed
      • Calculating maximum number of pairs
    • Maximum initial copy operations and priorities
  • Disaster recovery considerations
    • Error reporting communications (ERC)
  • Sharing volumes with other XP7 software volumes
  • Planning Cnt Ac-J Z in multiple XP7s using a consistency group
    • Establishing connections between multiple secondary systems
    • Multiple journals per RAID Manager consistency group
  • Planning for previous models
  • Guidelines for preparing systems for Cnt Ac-J Z
    • System option modes
• 4 Planning the data path
  • Data path design workflow
  • Sizing bandwidth
    • Five sizing strategies
    • Calculating bandwidth
      • Sizing bandwidth for peak write-workload
      • Sizing bandwidth for peak rolling average write-workload
      • Latency
      • Packet loss
  • Planning ports for data transfer
    • Port types
  • Cable length and switch requirements
  • Supported data path configurations
• 5 Using extended consistency groups
  • Overview
    • Guaranteed Consistency of Data Update Sequence
    • Consistency time
      • Restoring data to previous time stamps after failure
  • Registering journals in an EXCTG
  • Splitting, restoring, releasing pairs in an EXCTG
    • Pair-split operation
    • Operations for a specific journal
  • Removing journals from an EXCTG
    • Removing all journals from an EXCTG
    • Forcibly removing journals
  • Using EXCTGs with different model storage systems
  • Restoring journals manually
• 6 Cnt Ac-J Z configuration operations
  • Configuration workflow
  • Defining fibre-channel port attributes
  • Configuring primary and secondary systems for Cnt Ac-J Z
  • Configuring additional remote paths
  • Creating journals and adding journal volumes
  • Assigning an MP blade to a journal
• 7 Cnt Ac-J Z pair operations
  • Pair operations workflow
  • Checking pair status
  • Creating the Cnt Ac-J Z initial copy
  • Splitting Cnt Ac-J Z pairs
  • Splitting mirrors
  • Creating point-in-time copies
  • Resynchronizing Cnt Ac-J Z pairs
  • Resynchronizing mirrors
  • Deleting Cnt Ac-J Z pairs
  • Deleting pairs in a mirror
• 8 Monitoring the Cnt Ac-J Z system
  • Monitoring pair activity, status, license capacity
    • Pair status definitions
      • Additional information on pair status
      • Suspend types
      • Suspension conditions on secondary systems
  • Monitoring Cnt Ac-J Z pair synchronous rate
  • Monitoring Cnt Ac-J Z operations history
    • Operation descriptions
  • Saving pair information to a text file
  • Monitoring journal (mirror) status
    • Mirror status definitions
  • Monitoring Cnt Ac-J Z remote connections, path status
• 9 Maintaining the Cnt Ac-J Z system
  • Pair maintenance
    • Changing number of copies allowed per initial copy operation
    • Changing pair options
    • Forcibly deleting pairs
  • Journal and mirror maintenance
    • Changing options used by journals
    • Changing options used by mirrors
    • Adding additional journal volumes to an existing journal
    • Replacing a journal volume in a journal
    • Deleting journal volumes from a journal
    • Deleting journals
    • Forcibly deleting journals from an EXCTG
  • Remote path maintenance
    • Modifying data-transfer time threshold
    • Deleting remote paths
    • Deleting the Cnt Ac-J Z relationship
  • Managing power-off for systems and network devices
    • When power stops unexpectedly
      • When power is removed from primary or secondary system
      • When power is removed from network relay devices
    • Powering-off systems intentionally
      • Powering-off the primary or secondary system
      • Powering-off primary and secondary systems at the same time
    • Powering-off network relay devices
• 10 Cnt Ac-J Z disaster recovery operations
  • Overview
  • General recovery procedures
    • Preparing for recovery
    • Preparing for file and database recovery
    • Switching host operations to the remote site
    • Reversing copy direction from remote to local sites
    • Resuming host operations at the local site
  • Recovery for 3 Cnt Ac-J Z/Cnt Ac-S Z data centers
    • Recovery for 3 Cnt Ac-J Z/Cnt Ac-S Z DC cascade configuration
    • Recovery for 3 Cnt Ac-J Z/Cnt Ac-S Z DC multi-target configuration
      • Recovering from local site failure
      • Recovering from local and remote site failure (3DC multi-target)
    • Recovery in a delta resync configuration
      • Problems with pair status during delta resync recovery
  • Recovery for Cnt Ac-J Z/BC Z configurations
• 11 Cnt Ac-J Z troubleshooting
  • General troubleshooting
  • Remote paths status probelms
  • Troubleshooting by suspension type
  • Troubleshooting hardware problems affecting pairs
  • Troubleshooting with RAID Manager
  • Service information messages (SIMs)
    • Enabling SIMs reporting to a host
    • SIMs reference codes
  • Miscellaneous troubleshooting
    • Delta resync operation
    • Suspension among journals
• 12 Support and other resources
  • Contacting HP
    • Subscription service
    • Documentation feedback
  • Related information
    • HP websites
  • Conventions for storage capacity values
  • Typographic conventions
• A Sharing Cnt Ac-J Z volumes
  • Volume types that can be shared with Continuous Access Journal Z
  • Cache Residency Z
  • Compatible FlashCopy
  • Thin Provisioning Z
  • Resource Partition
  • External Storage
  • Virtual LVI
  • Auto LUN
• B Configurations with Continuous Access Synchronous Z
  • Sharing volumes with Continuous Access Synchronous Z
  • 3DC cascade configuration
    • Prerequisite information for 3DC cascade
    • Procedure for setting up 3DC cascade
  • 3DC multi-target configuration
    • Prerequisite information for 3DC multi-target
    • Procedure for setting up 3DC multi-target
  • Delta resync configuration
    • Creating the delta resync pair
    • Setting up remote command devices
    • Assigning mirrors to remote command devices
    • Releasing remote command device assigned to a mirror
    • Performing the delta resync operation
      • Problems that can occur in the delta resync operation
• C Configurations with Business Copy Z
  • Overview
  • Configurations with Business Copy Z primary volumes
  • Configurations with Business Copy Z secondary volumes
  • Pair status and data currency
• D Cnt Ac-J Z GUI reference
  • Journals window
  • Journal Volumes window
  • Journal Properties window
  • Create Journals wizard
    • Create Journals window
    • Select Journal Volumes dialog box
    • Confirm window
  • Assign Journal Volumes wizard
    • Assign Journal Volumes window
    • Confirm window
  • Delete Journals window
  • Force Remove Journals from EXCTG window
  • Edit Journal Options wizard
    • Edit Journal Options window
    • Confirm window
  • Assign MP blade wizard
    • Assign MP blade window
    • Confirm window
  • Edit Mirror Options wizard
    • Edit Mirror Options window
    • Confirm window
  • Assign Remote Command Devices wizard
    • Assign Remote Command Device window
    • Confirm window
  • Release Remote Command Devices window
  • EXCTG Properties window
  • Add Journals wizard
    • Add Journal window
    • Select Journals window
    • Confirm window
  • Remove Journal wizard
    • Remove Journal window
    • Confirm window
  • Initialize EXCTGs window
  • View Pair Synchronous Rate window
  • View Pair Properties window
  • Split Pair wizard
    • Split Pair window
    • Confirm window
  • Split Mirrors wizard
    • Split Mirrors window
    • Confirm window
  • Resync Pairs wizard
    • Resync Pairs window
    • Confirm window
  • Resync Mirrors wizard
    • Resync Mirrors window
  • Delete Pairs wizard
    • Delete Pairs window
  • Force Delete Pairs window
  • Delete Mirrors wizard
    • Delete Mirrors window
    • Confirm window
  • Edit Pair Options wizard
    • Edit Pair Options window
    • Confirm window
• Glossary
• Index