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Chapter 3 Notes
70
Data replication operation using a logical disk containing multiple partitions or logical volumes is
not recommended.
In ReplicationControl, when the volume to be operated is recognized from the server (operating
system) and can be accessed, and if the volume contains multiple partitions or logical volumes
obtained by the disk configuration information of the target volume, operation is not allowed
(default).
You can perform operation for a logical disk containing multiple partitions or logical volumes by
changing settings in the replication operation option setting file. In this case, be extremely careful
about operation.
For details of the replication operation option setting file, refer to the “Data Replication Command
Reference”.
Disk containing multiple partitions or logical volumes
When a drive letter is specified to execute replication operation for a logical disk containing multiple
partitions or logical volumes, all partitions or logical volumes on the logical disk become the target for
the replication operation. This is because replication operation is executed for an individual logical
disk.
Figure 3-1 shows an example where each of MV and RV consist of multiple partitions, with drives E:
and F: assigned to MV and drives J: and K: assigned to RV. Assume that you execute replication by
specifying drive E: as MV, attempting to replicate only the data of drive E: of MV to drive J: of RV.
As the result, data of drive F: is also replicated, overwriting RV drive K: with data of MV drive F:. That
is, data of RV drive K: will be lost. At this time, unless the disk association with the file system of RV
drive K: is cleared, the file system of drive K: will be placed in inconsistent state.
Figure 3-1 Replicating a Disk Containing Multiple Partitions
To avoid this type of trouble, data replication operations are not recommended for a logical disk
containing multiple partitions or logical volumes. Take care when you execute operations to a logical
disk containing multiple partitions or logical volumes.
E:
F:
MV
J:
K:
RV