HP XP7 Continuous Access Synchronous User Guide (TK911-96004)

4. The Description column displays operations. They are explained below.
Note the following when viewing histories.
• Operation rows may not appear in descending, chronological order.
• The most recent operations display, up to a maximum of 524,288 operations. Information
older than seven days is not shown.
• "LDEV ID" indicates the XP7 physical LDEV ID, even when you use RAID Manager and use
pair volumes in a virtual storage machine
• If a failed split occurred with two or more LDEVs at the same time, the number of pairs showing
Pair Suspend (Failure) may not match the actual number of pairs in which the failure occurs.
Operation descriptions
The following table describes the operations shown in the Histories window.
DescriptionOperation Displayed
Creation of the pair started.Pair Add Start
Creation of the pair completed.Pair Add Complete
The pair was deleted.Pair Delete
The pair was split.Pair Suspend (Operation)
The pair was split (suspended) because of a failure.Pair Suspend (Failure)
Resynchronization of the pair was started.Pair Resync. start
Resynchronization of the pair was completed.Pair Resync. Complete
Changing P-VOL Fence Level
You can change the P-VOL's fence level, which specifies when to reject write operations to the
P-VOL under certain failure circumstances.
For more information on fence levels, see “Allowing I/O to the P-VOL after a split—Fence Level
options” (page 20).
64 Monitoring and maintaining the Cnt Ac-S system