HP StorageWorks P9000 Reference Manual page 256

Suspends the copy pair after all pending data is synchronized. When this is specified, since the
system will wait for the suspend until no more unsynchronized data remains, the suspend will not
occur as long as updating continues (and I/O is performed).
PURGE
Applies to Continuous Access Asynchronous for Mainframe and Continuous Access Journal for
Mainframe.
When this is specified, the copy pair is suspended when a suspend request is issued, even if
unsynchronized data remains. Unsynchronized data is managed by MCU and RCU as differential
data, and becomes a differential copy target when the copy pair is synchronized.
FLUSH
Applies to Continuous Access Asynchronous for Mainframe and Continuous Access Journal for
Mainframe.
Suspends the copy pair after all pending data is synchronized. Because the suspension is performed
when data up until the time of the suspend request is synchronized, the system does not wait for
updating to finish. Data updated after the suspend request is managed by MCU and RCU as
differential data, and becomes a differential copy target when the copy pair is synchronized. In
Cnt Ac-A Z, the command is not executed to the remote site if FLUSH is specified.
This specification is valid for the following models only:
HP StorageWorks XP12000/XP10000 Disk Array
HP StorageWorks XP24000/XP20000 Disk Array
HP StorageWorks P9500 Disk Array
QUICK
Suspends in the QUICK mode.
The S-VOL can be read or written even when data is being copied. When this parameter is not
specified, the S-VOL can be read or written after data copying, and transition to the SUSPOP status
have finished. For details on what happens when the ATTIME parameter is specified for the NORMAL
ATTIME suspend function, see the HP StorageWorks P9000 Business Copy for Mainframe Systems
User Guide: HP XP24000 Disk Array, HP XP20000 Disk Array or the HP StorageWorks P9000
Business Copy for z/OS User Guide: HP XP12000 Disk Array, HP XP10000 Disk Array, HP 200
Storage Virtualization System. When the CAJ ATTIME suspend function is used, the method of
performing suspensions used depends on the specified ATOPT parameter.
FORWARD
Applies to Continuous Access Synchronous for Mainframe, Continuous Access Asynchronous for
Mainframe, and Continuous Access Journal for Mainframe.
When the copy direction is forward
When the copy direction is reverse
256 CLI Commands
Places copy pairs in the SUSPOP status, so that the copy
direction goes from the primary site to the secondary site
after RESYNC. If this parameter is specified for Continuous
Access Asynchronous for Mainframe, the data
synchronization method during the suspension will be the
same as that used when the DRAIN parameter is specified.
If this parameter is specified for Continuous Access Journal
for Mainframe, the data synchronization method during the
suspension will be the same as that used when the FLUSH
parameter is specified.
Places copy pairs in the SWAPPING status, so that the copy
direction goes from the primary site to the secondary site