Document Outline

• XP7 Continuous Access Synchronous User Guide
• Contents
• 1 Continuous Access Synchronous overview
  • How Continuous Access Synchronous works
  • Typical components
  • Storage systems
  • Volume pairs
  • Data path
  • Consistency groups
  • Interfaces
  • Failover software
  • Overview of initial, update copy operations
    • Initial copy
    • Update copy
  • Pair status
• 2 Requirements and specifications
  • System requirements and specifications
• 3 Planning for Continuous Access Synchronous
  • Storage system preparation
    • Cache, additional shared memory requirements
    • Requirements for XP7 with earlier model storage systems
    • System options
  • System performance considerations
    • Determining Round Trip Time
    • Determining Minimum Number of Remote Paths
    • Analyzing workload, planning data paths
  • Planning pairs and pair volumes
    • Pair volume requirements and recommendations
    • About allowing I/O to the S-VOL
    • Allowing I/O to the P-VOL after a split—Fence Level options
    • Differential data
    • Maximum number of pairs supported
      • Calculating maximum number of pairs
    • Priority for initial copy operations and scheduling order
      • Example 1: more initial copies than previously specified
      • Example 2: initial copy started, new pairs added
  • Consistency group planning
    • Consistency group for pairs in one primary and one secondary XP7
    • Consistency group for pairs in multiple primary and secondary systems
    • Consistency group requirements
      • Requirements for a CTG for one primary and one secondary system
      • Requirements for a CTG for multiple primary and secondary systems
    • Assigning pairs to a consistency group
      • Assigning pairs belonging to one primary and secondary system
      • Assigning pairs belonging to multiple primary and secondary systems
    • Split behaviors for pairs in a CG
      • Host access after split
      • Pair status before and after a split operation
    • Consistency group 127
      • CG 127 behavior and restrictions when a pair is suspended
      • CG 127 behavior and restrictions when the data path fails
    • Notes when you remove or resynchronize pairs by Business Continuity Manager
  • Host failover software
  • Data path requirements and configurations
    • Bandwidth requirements
    • Fibre Channel requirements
    • Supported data path configurations
      • Direct connection
      • Switch connection
      • Extender connection
    • Ports
      • Port requirements
      • Port attributes
• 4 Sharing Continuous Access Synchronous volumes
  • Volume types that can be shared with Continuous Access Synchronous
  • Cache Residency
  • Data Retention
  • Thin Provisioning
  • global virtualization
  • LUN Manager
  • Performance Monitor
  • Business Copy
    • Configurations with Business Copy P-VOLs
    • Configurations with Business Copy S-VOLs
    • Status reporting and data currency
  • Continuous Access Journal
  • Virtual LUN
  • Auto LUN
    • Restrictions
• 5 Cnt Ac-S configuration
  • Configuration workflow
  • Defining port attributes
  • Setting up primary and secondary systems for Cnt Ac-S
  • Setting # of vols. copied, path blockade, other options
• 6 Cnt Ac-S pair operations
  • Pair operations workflow
  • Checking pair status
  • Creating pairs
  • Splitting pairs
  • Resynchronizing pairs
  • Deleting pairs
• 7 Monitoring and maintaining the Cnt Ac-S system
  • Monitoring pair status, license capacity
    • How pair status changes
    • Pair status definitions
      • Split types
      • System behavior
  • Monitoring Cnt Ac-S pair synchronous rate
  • Monitoring Cnt Ac-S operations history
    • Operation descriptions
  • Changing P-VOL Fence Level
  • Forcibly deleting pairs
  • Saving pair information to a text file
  • Monitoring and maintaining remote connections and paths
    • Remote path status definitions
    • Configuring additional remote paths
    • Changing minimum paths, round trip time, other remote connection options
    • Deleting remote paths
  • Deleting Continuous Access Synchronous
  • Managing power-off for systems and network devices
    • General information
    • Planned outage of the primary system
    • Planned outage of the secondary system or remote path
    • Planned outage of both primary and secondary systems
• 8 Data migration
  • Migration overview
    • Migrating data
• 9 Disaster recovery
  • Disaster recovery overview
    • Sense information shared between sites
    • File and database recovery
  • Switching operations to the remote site
    • Checking S-VOL consistency with the P-VOL
  • Transferring operations back to the local site
• 10 Troubleshooting
  • Error codes and messages
  • General troubleshooting
  • Remote path status problems
  • Split pair problems
  • Troubleshooting using RAID Manager
    • SSB2 error codes when SSB1 = 2E31/B901/B90A/B90B/B912/D004
    • SSB2=B992 error codes when SSB1 = B901 or B90A
  • Service Information Messages (SIMs)
  • Pinned track recovery
• 11 Support and other resources
  • Contacting HP
    • Subscription service
    • Documentation feedback
  • Related information
    • HP websites
  • Conventions for storage capacity values
  • Typographic conventions
• A Cnt Ac-S GUI reference
  • Replication window
  • Remote Replication window
  • Remote Connections window
  • Add Remote Connection wizard
    • Add Remote Connection window
    • Confirm window
  • View Remote Connection Properties window
  • Remove Remote Connection window
  • Edit Remote Connection Options wizard
    • Edit Remote Connection Options window
    • Confirm window
  • Add Remote Paths wizard
    • Add Remote Paths window
    • Confirm window
  • Remove Remote Paths wizard
    • Remove Remote Paths window
    • Confirm window
  • Edit Remote Replica Options wizard
    • Edit Remote Replica Options window
    • Change CU Options window
    • Confirm window
  • Create Pairs wizard
    • Create Pairs window
    • Change Settings window
    • Confirm window
  • Split Pairs wizard
    • Split Pairs window
    • Confirm window
  • Resync Pairs wizard
    • Resync Pairs window
    • Confirm window
  • Delete Pairs wizard
    • Delete Pairs window
    • Confirm window
  • Force Delete Pairs (TC Pairs) window
  • Edit Pair Options wizard
    • Edit Pair Options window
    • Confirm window
  • View Pair Properties (Remote) window
  • View Pair Synchronous Rate window
  • Histories window
• Glossary
• Index