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HP P9000 Business Copy for Mainframe Systems User Guide (AV400-96386, October 2011)

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Status, permitted pair operations
A pair’s status shows a pair’s condition. It also shows you whether a specific operation can be
performed. The following shows operations that can be performed when a pair is in the various
statuses.
The following table shows supported operations when you have cascaded pairs.
Table 9 Supported operations for specific pair statuses
Pair statusOperation
SuspendResync-RResyncSplitV-SplitSP-PendDuplexPendingSimplex
NoNoNoNoNoNoNoNoOkAdd Pair
NoNoNoNoNoNoOkOkOkSplit Pair
NoOkOkOkOkOkOkOkNoSuspend
Pair
OkNoNoOkOkNoNoNoNoResync Pair
(forward)
NoNoNoOkNoNoNoNoNoResync Pair
(backward)
OkOkOkOkNoOkOkOkNoDelete Pair
NOTE:
• Processing will end normally when you resynchronize a pair in duplex or resync status using the PPRC TSO command
to copy data from the S-VOL to the T-VOL. However, since no resynchronize operation is performed, pair status
does not change.
• With Business Continuity Manager, processing ends normally but pair status also does not change for the reason
given above.
• If you use the ICKDSF PPRCOPY command, the command abnormally ends and reports CC = 12.
Reviewing pair, volume details
You can review the data related to pairs and their volumes. This includes volume capacity, pair
status, S-VOL and T-VOL identifiers, and several other details.
NOTE: LDEVs for S-VOLs and T-VOLs listed in Remote Web Console may end in the following
special symbols:
• A pound or gate symbol (#), which indicates an external volume (for example, 00:00:01#)
• The letter "X", which indicates a virtual volume used by Thin Provisioning Z (for example,
00:00:01#).
Procedure 11 To check pair and volume details
1. In the Remote Web Console, click Actions > Local Copy > Business Copy for
Mainframe/Compatible FlashCopy/Compatible FlashCopy SE > Pair Operation.
2. In the tree, select the CU image where the pairs or volumes are located. Related volumes
display in the volume list.
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