HP StorageWorks XP Remote Web Console Software - Manual (Page 164)

You can release all TrueCopy for Mainframe Synchronous pairs between an MCU and RCU (same
CU). You can also release all TrueCopy for Mainframe Asynchronous pairs in a consistency group
by connecting to the MCU. The TrueCopy for Mainframe Asynchronous pair status will change to
deleting when the delete operation is accepted by the MCU and RCU, and then to simplex after
the internal release pair process is complete. In addition, you can release TrueCopy for Mainframe
Asynchronous pairs according to their consistency status (for example, for disaster recovery) by
connecting to the RCU (the RCU maintains the consistency status).
The CDELPAIR TSO command can be used to release TrueCopy for Mainframe pairs and TrueCopy
for Mainframe Asynchronous groups of pairs from the MCU
CAUTION: Please see the warning about duplicate VOLSERs.
CAUTION: As a general rule, when you want to release a TrueCopy for Mainframe Async pair
from the MCU, it is strongly recommended that you perform the release pair operation after the
update copy operation is completed. If you request the release pair operation while the update
copy process is still in progress, it may take a long time to complete the operation. However, when
you urgently need to release a TrueCopy for Mainframe Asynchronous pair, you can perform the
release pair operation from the RCU. In this case, you will find the suspended status at the MCU
after performing the release pair operation from the RCU.
The Delete Pair dialog box (see “Delete Pair Dialog Box (Asynchronous)” (page 164) ) allows you
to release one or more TrueCopy for Mainframe pairs and select the release options for the pair(s).
To open the Delete Pair dialog box, click Pair Operation tab, select a CU grouping or CU from
the tree, select the desired pair(s), right-click, and then click Delete Pair command.
Figure 57 Delete Pair Dialog Box (Asynchronous)
If you select a pair from the volume list and change the settings, and if you use a drop-down list
to set blank to a parameter, the parameter takes the default value for each pair. If you select the
settings from the preview list before applying the changed settings, and if you use a drop-down
list to set blank to a parameter in the Delete Pair dialog box, the parameter value in the preview
list will not be changed.
Volume: the device ID of the selected volume. If you selected more than one volume, the volume
with the lowest device ID is displayed.
If the pound or gate symbol (#) is added to the end of the device ID like 00:00:3F #, the LDEV
that the LDEV number indicates is an external volume. For details on an external volume, see the
HP StorageWorks XP24000/XP20000 External Storage Software User's Guide.
164 Performing TrueCopy for Mainframe Pair Operations