HP XP P9500 Software User's Manual page 277

3. From the primary host, make sure that the Cnt Ac-J Z copy group status is DUPLEX, and then
execute the YKMAKE SELECT(COND) command for the copy pair that has been added to
the Cnt Ac-J Z copy group definition.
HP recommends that you execute the YKQUERY command before executing the YKMAKE
command, because the YKMAKE command is executed only for the added copy pair. If the
YKQUERY command is not executed beforehand, an I/O error might occur during the YKMAKE
command execution. However, if an I/O error occurs, copy pair creation processing will
continue.
To delete a volume:
To delete a volume, dissolve a copy pair that contains a volume to be deleted and another copy
pair that shares one of the volumes in that copy pair. After the copy pair is dissolved, delete the
copy pair from the Cnt Ac-S Z and Cnt Ac-J Z copy group definitions.
1. From the primary host, make sure that the Cnt Ac-S Z and Cnt Ac-J Z copy group statuses are
DUPLEX, and then execute the YKDELETE DEVN command for the Cnt Ac-S Z copy group.
Specify in the DEVN parameter the device numbers for the P-VOL and S-VOL of the Cnt Ac-S
Z copy pair that you want to delete.
2. From the primary host, execute the YKDELETE DEVN command for the Cnt Ac-J Z copy group.
Specify in the DEVN parameter the device numbers of the P-VOL and S-VOL of the Cnt Ac-J Z
copy pair that you want to delete.
Monitoring status and changing configurations in a 3DC Cascade configuration 277