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

• If you use the DKAs supporting encryption, you can create a Business Copy Z pair by using
an encrypted volume and a non-encrypted volume. For example, you can create the pair
specifying an encrypted volume as the S-VOL and a non-encrypted volume as the T-VOL. In
this case, data in the encrypted S-VOL will be copied as non-encrypted data in the
non-encrypted T-VOL.
• If a pair consists of encrypted volumes and a non-encrypted volume, and the Quick Restore
is executed, the S-VOL and T-VOL encryption statuses are reversed.
• With a Quick Restore, Remote Web Console may display outdated information. Click
File/Refresh to insure the most up-to-date information.
• With a Quick Restore, to keep the S-VOL and T-VOL unsynchronized, enable the Swap&Freeze
option before performing the Quick Restore. Update copy operations are then suppressed
when the Quick Restore is completed and the pair is in Duplex status.
• If the reverse or quick restore pairresync operation is performed on one Business Copy Z pair
in a 1 to n Business Copy Z configuration (n>1), the S-VOL and the other T-VOL are no longer
synchronized.
• With the Reverse Copy or Quick Restore operation, the following restrictions apply:
Neither Reverse Resync option can be performed on pairs in the Split status.◦
◦ Pairs sharing the same S-VOL must be in Split or Suspend status.
◦ If the pair shares a volume with Continuous Access Synchronous Z or Continuous Access
Journal Z, and the Continuous Access Synchronous Z or Continuous Access Journal Z
pair is not suspended, neither backward resync operation can be performed.
◦ Quick Restore cannot be performed when Business Copy Z and shared Continuous Access
Synchronous Z or Continuous Access Journal Z volumes include an external volume(s).
◦ You cannot create a Continuous Access Synchronous Z or Continuous Access Journal Z
pair with a volume shared by Business Copy Z during either backward resync operation.
◦ When the Reverse Copy or Quick Restore operation is in progress, you cannot create,
split, or resync any pair sharing the same S-VOL. You can delete or suspend the pairs,
however.
◦ The Quick Restore operation cannot be performed on a Cross OS File Exchange pair.
• A PPRC command enables you to resynchronize all BC Z pairs in the same consistency group.
Pairresync operation on all the pairs in the same consistency group works in Normal Resync.
Therefore, you cannot specify Quick Resync, Reverse Copy, or Quick Restore. If you want to
perform Quick Resync, Reverse Copy, or Quick Restore, you issue the PPRC command on one
pair.
Procedure 8 To resynchronize a pair
1. If the T-VOL is online, set it offline. If you resynchronize T-VOL to S-VOL, set the S-VOL offline,
too.
2. Click Actions > Local Copy > Business Copy for Mainframe/Compatible FlashCopy/Compatible
FlashCopy SE > Pair Operation to open the Pair Operation window.
3. Change to Modify mode by clicking the icon.
4. In the tree, select the CU image where the desired pairs are located.
5. In the volume list, select the pair(s) to be resynchronized, right-click, and select Resync Pair.
HP Confidential38 Performing pair operations