HP StorageWorks XP Remote Web Console Software User Manual
Page 124
124 Hitachi TrueCopy z/OS for HP XP12000/XP10000 and SVS 200 storage systems
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M-VOL and R-VOL: The first row: CU number and Device ID. The second row: Device emulation type
The third row: Capacity (number of cylinders).
• The CLPR number and CLPR name are not displayed under the volume paired with the local volume.
NOTE:
If # is added to the end of the device ID, such as 00:3F#, the LDEV is an external volume.
If the pair created with TrueCopy for z/OS of the microcode program version 50-03-6x-xx and
earlier, “#” is not added to the volume paired with the local volume. For more information about
external volumes, see the HP StorageWorks XP External Storage user guide for the
XP12000/XP10000 disk array.
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CLPR: The CLPR number and the CLPR name of the volume on the primary site are displayed.
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Pair Status: Simplex, Pending, Duplex, Suspended, Suspending, Deleting, Suspended (Continue), or
Suspending (Continue). For more information for TC390 pair status, see ”
on page 35. If the pair is split or suspended, the split/suspended type is also displayed.
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Pair Synchronized: Displays how far the initial copy operation progressed in percentage and the
progress bar.
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RCU S/N and SSID: Serial number and SSID of the RCU (or MCU if R-VOL is selected).
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MCU-RCU Path: Channel type of the path interface between the disk arrays (Serial or Fibre).
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Update Type: Synchronous or Asynchronous.
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Initial Copy Pace: 3 tracks or 15 tracks (displayed during initial copy and resume copy).
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Initial Copy Priority: 1 - 256 (displayed during initial copy and resume copy).
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M-VOL Fence Level: Conditions under which the MCU will reject write operations to the M-VOL. Never:
Never fence the operation. Data: Fence when the MCU cannot successfully execute an update copy
operation for any reason. Status: Fences only if the MCU is not able to change the R-VOL status to the
same status as the M-VOL.
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R-VOL Write: Enabled (Write operation to the R-VOL is enabled) or disabled (Write operation to the
R-VOL is disabled) for this pair. The Write operation to the R-VOL is enabled only when the
Asynchronous pair is split. However, Enabled is not usually recommended. When R-VOL Write Enabled
is required, contact your HP account support representative.
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Pair Established: The date and time that the volume pair was created.
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Last Updated: The date and time that the volume pair status was last updated.
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Difference Management: Auto, Cylinder, or Track.
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CFW Data: The CFW Data option specifies whether the CFW data will be copied to the R-VOL:
• If Copy to R-VOL is selected, the MCU will copy the CFW data to the R-VOL.
• If Only M-VOL is selected, the MCU will not copy the CFW data to the R-VOL. This setting is
recommended for two reasons: (1) copying the CFW data impacts disk array performance and (2)
CFW data is typically used for temporary files (for example, sort work datasets) that are not usually
required for disaster recovery.
NOTE:
If a TC390 pair is established using PPRC commands, the CFW data option is set to the
Copy to R-VOL setting.
•
DFW to R-VOL: The DFW to R-VOL option (TC390 Synchronous only) specifies whether the MCU will
suspend a TC390 volume pair when the RCU cannot execute DFW to the R-VOL:
• If DFW not required is selected, the MCU will not suspend the TC390 volume pair when DFW on
the RCU is blocked. This option is recommended if you need to maintain synchronization of the
TC390 volume pair.
NOTE:
If a TC390 pair is established using PPRC commands, the DFW to R-VOL option is set to
not required.