HP StorageWorks XP12000 User Manual page 111

Figure 53 Pairresync pane
• P-VOL: Port - G-ID - LUN of the selected volume.
NOTE:
If # is added to the end of the LDEV number, such as 00:3C#, the LDEV is an external volume. For
details about external volumes, see the
• P-VOL Fence Level: Fence level.
• Never: Never fence the operation.
• Data: Fence when the MCU cannot successfully execute an update copy operation for any
reason.
• Status: Fence only if the MCU cannot change the S-VOL status to the same status as the
P-VOL. For synchronous mode only.
When asynchronous pairs are created, Never is set automatically.
• Initial Copy Parameters:
• Initial Copy Pace (From 1 to 15): Number of tracks for resume copy. The default is 15.
• Priority (From 1 to 256): Priority for resync operation, which determines order in which resync
operations are performed.
• Asynchronous Parameters:
• Resume Range: When Group is selected, resync all split or suspended Continuous Access XP
Async pairs in the same group as the selected pair. When LU is selected, resync only the
selected Continuous Access XP Async pairs.
• Error Level: Error level for the Continuous Access XP Async pairs: Group or LU. This option is
available only when LU is selected for the Resume Range.
For more information about option parameters, see
of the Paircreate pane.
NOTE:
If an MCU or RCU is powered off and its backup batteries are fully discharged while Continuous Access
XP pairs are suspended, the P-VOL and S-VOL cylinder bitmaps are not retained. In this unlikely case, the
MCU and RCU mark all cylinders of all split or suspended Continuous Access XP volumes as modified,
so the MCU performs the equivalent of an entire initial copy operation when pairs are resynced.
HP StorageWorks External Storage XP user guide
Continuous Access XP initial copy and pair options
.
Continuous Access XP user guide
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