Document Outline

• Contents
• About this guide
  • Intended audience
  • Prerequisites
    • Firmware versions
      • Table 1 Recommended and minimum firmware versions
  • Related documentation
  • Document conventions and symbols
    • Table 2 Document conventions
  • HP technical support
  • Subscription service
    • Helpful web sites
• 1 Continuous Access XP Journal
  • Overview of copy solutions
    • Continuous Access XP Journal
    • Business Copy XP and ShadowImage for z/OS
    • Continuous Access XP and TrueCopy for z/OS
  • Overview of Continuous Access XP Journal
    • Functionality
      • Figure 1 Continuous Access XP Journal components for fibre-channel connections
      • Journal obtain function
      • Journal copy function
      • Journal restore function
    • Components
      • Figure 2 Continuous Access XP Journal components
      • Figure 3 Connection configuration for multiple secondary disk arrays
      • Local disk arrays
      • Main and remote control units (primary and secondary disk arrays)
      • Journal groups
      • Data volume pairs
      • Journal volumes
        • Number of journal volumes
        • Journal volume specifications
        • Journal volume restrictions
        • Journal volume areas
      • Consistency groups
        • Figure 4 Corresponding consistency group and journal group numbers
      • Remote copy connections
      • Initiator ports and RCU target ports
      • Continuous Access XP Journal Graphical User Interface
      • Host failover software
    • Remote copy operations
      • Figure 5 Remote copy operations
      • Initial copy operations
      • Update copy operation
      • Read and write I/O operations during Continuous Access XP Journal operations
      • Secondary data volume write option
      • Difference management
      • Journal processing
        • Creating and storing journals at primary disk arrays
          • Table 3 Metadata information
        • Copying journals to secondary disk arrays
        • Storing journals at secondary disk arrays
        • Selecting and restoring journals at secondary disk arrays
          • Figure 6 Selecting and settling journal at secondary disk array
        • Journal types
      • Inflow control for journal cache
    • Journal group operations
    • Continuous Access XP Journal data volume pair status
      • Table 4 Continuous Access XP Journal data volume pair status
      • Continuous Access XP Journal split types (PSUS)
        • Table 5 Continuous Access XP Journal split types (PSUS)
        • Table 6 Consistency status for split/suspended Continuous Access XP Journal secondary data volumes
      • Continuous Access XP Journal suspend types
        • Table 7 Suspend types (PSUE)
      • Continuous Access XP Journal suspension condition
        • Table 8 Continuous Access XP Journal suspension conditions
  • Continuous Access XP Journal operations requirements and restrictions
    • System requirements
    • One-to-one volume copy operations
    • Logical unit (LU) types
      • Table 9 Supported emulation types
      • Table 10 Supported data volumes and journal volumes
      • Table 11 Specifications for logical volumes that can form pairs
      • Table 12 Journal volume specifications
      • Table 13 RAID-level configuration of Continuous Access XP Journal
      • Maximum number of pairs
    • Journal groups
      • Table 14 Journal group specifications
      • Table 15 Volume specifications in journal group
    • Accessing Continuous Access XP Journal primary and secondary data volumes
    • Cache and nonvolatile storage (NVS)
    • Duplicate volumes
    • Port configurations
      • Table 16 Illegal port combinations (for FRONT CL1)
      • Table 17 Illegal port combinations (for REAR CL2)
    • Installing hardware
      • Remote copy connections
        • Figure 7 Continuous Access XP Journal remote copy connection configuration
        • Figure 8 Direct remote copy connections
        • Figure 9 Switch remote copy connections
        • Figure 10 Extender remote copy connections
    • Enabling Continuous Access XP Journal options
    • Planning for journal volumes
      • Considerations
      • Planning process
        • Data transfer speed required for journal volumes
          • Figure 11 Data transfer speed of journal volumes
        • RAID group configuration and journal group configuration
        • Arranging journal volumes
        • Journal volume capacity
          • Figure 12 Influence of data transfer speed on journal volume capacity
        • Journal volumes in restore journal groups
      • Factors that determine the data transfer speed between the primary and secondary disk arrays
        • Figure 13 Data transfer speed between primary and secondary disk arrays
        • Bandwidth of data transfer paths
        • Journal transfer speed of DKCs
    • Configuring primary and secondary disk arrays for Continuous Access XP Journal operations
    • Combining Continuous Access XP Journal with other data management functions
      • Table 18 Whether non-Continuous Access XP Journal volumes can be used as Continuous Access XP Journal volumes
      • Combining Continuous Access XP Journal with Virtual LUN
      • Combining Continuous Access XP Journal with Cache LUN XP
      • Combining Continuous Access XP Journal with LUN Manager
      • Combining Continuous Access XP Journal and Performance Control XP
      • Combining Continuous Access XP Journal and Business Copy XP
        • Table 19 Host pair status reporting for Continuous Access XP Journal/Business Copy XP shared volumes
        • Table 20 Data currency of a shared Continuous Access XP Journal/Business Copy XP volume
        • Figure 14 Shared Continuous Access XP Journal secondary data volume and Business Copy XP P-VOL
        • Figure 15 Shared Continuous Access XP Journal secondary data volume and Business Copy XP P-VOL
        • Figure 16 Shared Continuous Access XP Journal primary data volume and Business Copy XP P-VOL, and Continuous Access XP Journal secondary data volume and Business Copy XP P-VOL
        • Figure 17 Business Copy XP S-VOL in PSUS status functioning as Continuous Access XP Journal primary data volume
        • Figure 18 Restoring Business Copy XP P-VOLs, step 1
        • Figure 19 Restoring Business Copy XP P-VOLs, step 2
        • Figure 20 Restoring Business Copy XP P-VOLs, step 3
        • Figure 21 Restoring Business Copy XP P-VOLs, step 4
        • Figure 22 Restoring Business Copy XP P-VOLs, step 5
        • Figure 23 Restoring Business Copy XP P-VOLs, step 6
        • Figure 24 Restoring Business Copy XP P-VOLs, step 7
        • Figure 25 Restoring Business Copy XP P-VOLs, step 8
        • Figure 26 Restoring Business Copy XP P-VOLs, step 9
      • Combining Continuous Access XP Journal with Continuous Access XP (3DC cascading configuration)
        • Figure 27 3DC cascading configuration (combining Continuous Access XP Journal with Continuous Access XP [synchronous])
        • Basic behavior
          • Figure 28 Basic behavior in 3DC cascading configuration
        • Hardware configuration
        • Setup procedure
        • Disaster recovery
      • Combining Continuous Access XP Journal with Continuous Access XP Synchronous (3DC multi-target configuration)
        • Figure 29 3DC multi-target configuration (combining Continuous Access XP Journal with Continuous Access XP Synchronous)
        • Hardware configurations
        • Setup procedure
        • Recovering from primary site failures
          • Figure 30 Recovering from disaster at primary sites
        • Changing to 3DC multi-target configurations after recovering from primary site failures
          • Figure 31 Changing to a 3DC multi-target configuration after recovering from primary site failures
        • Transferring business tasks from Continuous Access XP secondary sites to primary sites (in 3DC cascading configurations)
          • Figure 32 Transferring business tasks from Continuous Access XP secondary sites to primary sites (in 3DC cascading configurations)
        • Transferring business tasks from Continuous Access XP secondary sites to primary sites (in 3DC multi-target configurations)
          • Figure 33 Transferring business tasks from Continuous Access XP secondary sites to primary sites (in 3DC multi-target configurations)
        • Recovering from primary site and Continuous Access XP Synchronous secondary site failures
          • Figure 34 Recovering from primary site and Continuous Access XP (synchronous) secondary site failures
        • Transferring business tasks from Continuous Access XP Journal secondary sites to primary sites
          • Figure 35 Transferring business tasks from Continuous Access XP Journal secondary sites to primary sites
      • Combining Continuous Access XP Journal and LUN Security XP Extension
        • Table 21 Access attribute and availability as a Continuous Access XP Journal pair volume
        • Copying access attributes
          • Table 22 VMA setting and availability of Paircreate operation
          • Figure 36 Copying access attributes
          • Table 23 Pair status and availability of LUN Security XP Extension operation
          • Table 24 Variable access attribute (pair status of Continuous Access XP Journal primary data volume is PAIR or COPY)
        • LUN Security XP Extension license capacity
  • Configuring disk arrays and logical paths
    • Displaying the DKC Operation pane
      • Continuous Access XP Journal has not been started
      • Continuous Access XP Journal has already been started
      • DKC Operation pane components
        • Figure 37 DKC Operation pane, DKC option
      • Displaying information about remote disk arrays
      • Displaying information about logical paths
      • Displaying information about ports on local disk arrays
        • Figure 38 DKC Operation pane, Port option
    • Configuring port attributes
    • Associating primary and remote disk arrays and configuring logical paths (Add DKC)
      • Figure 39 Add DKC pane
    • Changing options for logical paths and disk arrays
      • Figure 40 DKC Option pane
    • Adding logical paths
      • Figure 41 Add Path pane
    • Deleting logical paths
      • Figure 42 Delete Path pane
    • Viewing the status of logical paths
      • Figure 43 DKC Status pane
      • Table 25 Logical path status
    • Removing the relationship between primary and secondary disk arrays
  • Using journal groups
    • Displaying the Journal Operation pane
      • Continuous Access XP Journal has not been started
      • Continuous Access XP Journal has already been started
      • Journal Operation pane components
        • Figure 44 Journal Operation pane
    • Registering journal volumes in journal groups
      • Figure 45 Edit JNL Volumes pane
    • Deleting journal volumes from journal groups
    • Displaying detailed information about journal groups
      • Figure 46 JNL Group Detail pane
    • Changing options for journal groups
      • Figure 47 Change JNL Option pane
      • Table 26 SVP modes
    • Deleting journal groups
    • Splitting mirrors (Pairsplit-r: suspending copy operations)
      • Figure 48 Pairsplit-r pane
    • Restoring mirrors (Pairresync: resuming copy operations)
    • Deleting data volumes from mirrors (Pairsplit-S: ending copy operations)
  • Performing Continuous Access XP Journal pair operations
    • Displaying the Pair Operation pane
      • Continuous Access XP Journal has not been started
      • Continuous Access XP Journal has already been started
      • Pair Operation pane components
        • Figure 49 Pair Operation pane
        • Figure 50 Information in Port-G-ID-LUN column in Pair Operation pane
        • Figure 51 Information in pair Port-G-ID-LUN column in Pair Operation pane
      • Filtering information in the list in the Pair Operation pane
        • Figure 52 Display Filter pane
      • Saving pair status information to a text file
    • Creating a pair of data volumes (Paircreate)
      • Figure 53 Paircreate pane
    • Displaying detailed information about a pair of data volumes
      • Figure 54 Pairdisplay pane
    • Changing options for data volume pairs
      • Figure 55 Change Pair Option pane
    • Splitting a pair of data volumes
      • Figure 56 Pairsplit-r pane
    • Restoring a pair of data volumes
      • Figure 57 Pairresync pane
    • Deleting a pair of data volumes
      • Figure 58 Pairsplit-S pane
    • Creating a Point-in-Time copy of data volumes
  • Monitoring remote copy operations
    • Displaying the Usage Monitor pane
      • Continuous Access XP Journal has not been started
      • Continuous Access XP Journal has already been started
        • Figure 59 Usage Monitor pane
    • Starting and stopping usage monitoring
      • Starting usage monitoring
      • Stopping usage monitoring
    • Displaying the usage monitor graph
      • Figure 60 Display Item pane
      • Table 27 Remote copy I/O statistics
    • Saving monitoring data in text files
  • Viewing history of data volume pair operations
    • Displaying the History Operation pane
      • Continuous Access XP Journal has not been started
      • Continuous Access XP Journal has already been started
      • History Operation pane components
        • Figure 61 History Operation pane
    • Saving operation history in a text file
  • Performing optional operations
    • Displaying the Optional Operation pane
      • Continuous Access XP Journal has not been started
      • Continuous Access XP Journal has already been started
        • Figure 62 Optional Operation pane
      • Optional Operation pane components
    • Changing disk array options
      • Figure 63 System Option pane
  • Disaster recovery operations
    • Preparing for disaster recovery
      • File and database recovery procedures
    • Switching operations to the secondary site
    • Transferring operations back to the primary site
    • Resuming normal operations at the primary site
  • Troubleshooting
    • Troubleshooting Command View XP or XP Remote Web Console operations
      • Table 28 General troubleshooting information for Continuous Access XP Journal
      • Table 29 Troubleshooting problems with status of logical paths
      • Table 30 Troubleshooting suspended Continuous Access XP Journal pairs
      • Table 31 Resolving Continuous Access XP Journal pair suspension
    • Continuous Access XP Journal error codes
    • Calling the HP Support Center
  • Power management for disk arrays and network relay devices
    • When power is removed due to an unexpected reason
      • When power is removed from primary disk arrays
      • When power is removed from secondary disk arrays
      • When power is removed from network relay devices
    • When you turn power off intentionally
      • When you power off primary disk arrays
      • When you power off secondary disk arrays
      • When you power off primary and secondary disk arrays at the same time
      • When you power off network relay devices
  • Pinned track recovery for Continuous Access XP Journal volumes
  • SIM reporting
    • Figure 64 Typical SIM showing reference code and SIM type
    • Table 32 Typical SIM showing reference code and SIM type
• Index
  • Numerics
  • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • J
  • L
  • M
  • N
  • O
  • P
  • R
  • S
  • T
  • U
  • V
  • W