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Chapter 4 Functions of ReplicationControl
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To execute pair setting or unpair, the iSMrc_pair command is used.
The iSMrc_pair command sets and unpairs specified paired MV and RV. If a failure occurred on the
MV side or RV side disk array and the regular unpairing becomes impossible, Forced Unpair can be
performed.
[Main Options]
The iSMrc_pair command enables the specification of the following option regarding pair setting and
unpairing.
(1) Specifying pair setting (-pair) or unpairing (-unpair)
Specify whether to set a pair or unpair.
y Specify a pair (-pair)
Specifies pair setting for specified paired volumes.
y Unpair (-unpair)
Unpair the specified paired volumes.
(2) Specifying paired volumes
Specify MV and RV volumes.
y Specify MV (-mv volume -mvflg mv_flg)
Specifies the volume and volume type of MV.
y Specify RV (-rv volume -rvflg rv_flg)
Specifies the volume and volume type of RV.
The pair setting and canceling operation (iSMrc_pair command) is performed on a single logical
disk; therefore, it is not possible to specify an LVM volume group or a VxVM disk group as a
volume. For details of the volume types, refer to 4.3 “Volume Types”.
On the Windows system, when a specific partition (drive letter) is specified for a volume
consisting of multiple partitions, all partitions in the volume become operation targets; therefore,
the default setting does not allow the multiple partitions to be operated. To perform operations
for a volume consisting of multiple partitions, you need to change the default setting. For
information about the replication operation option setting file, refer to the “Data Replication
Command Reference”.