NEC Storage Manager Reference page 43

Chapter 2 Command Reference
[ NOTES ]
The target MV is recognized by Replication Control as the Replication target disk.
The target MV and RV are paired.
The activity state of the target pair is not Restore Execution.
The copy control state of the target pair is the Foreground Copy state.
* To separate pairs in the Background Copy state, you must perform Resume Copy and change
them to the Foreground Copy state.
The disk array where the specified MV and RV are stored is not in the freeze state.
When Separate starts, you must flush the file system cache used by MV before the instruction is
executed or unmount MV in order to finish updates to MV.
The following notes apply to the case when joint operation with the replication management is not
performed (the I/O issuance to disk arrays is directly controlled via FC).
The target MV is registered in the Volume List.
Specifying volume of a dynamic disk is not allowed.
MV is a disk array under control of the self host.
A Volume List is not being created.
When specifying the combination of a volume group or a disk group with a special file name
(logical disk name), for an MV(RV), specify the same number of logical volumes that constitute
a volume group or a disk group on the specified special file name (logical disk name) side.
To specify a volume group, the target volume group must be active.
To specify a disk group, the target disk group must be active.
The iSM special file is not being created (the UNIX system HP-UX version only).
[ RETURN VALUE ]
0: Operation for all the paired volumes terminated normally.
1: Operation for all the paired volumes terminated abnormally.
2: Operation for some paired volumes terminated abnormally.
3: The command terminated abnormally because all or some of the paired volumes were already
in Replicate State.
[ ERRORS ]
This command terminates abnormally in the following cases.
A parameter is invalid.
The instruction fails due to a disk array error.
38