NEC Storage Manager IS016-5E User Manual

Chapter 3 Notes

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.