Pair operations with virtual storage machine pairs

Specifying virtual IDs in pair operations

You can perform pair operations by specifying both of the following in the HORCM_LDEV parameters of the Command Control Interface configuration definition file:

• Serial number of the virtual storage machine in the Serial# parameter

• Virtual LDEV number in the CU:LDEV(LDEV#) parameter

You can perform conventional pair operations by specifying both of the following in the HORCM_LDEV parameters of the configuration definition file:

• Serial number of the physical storage system in the Serial# parameter

• Physical LDEV number in the CU:LDEV(LDEV#) parameter

 If the following condition exists, the local copy pair operation cannot be performed by specifying virtual IDs:

• Primary volume and secondary volume are defined differently for the virtual storage machine.

If both of the following conditions exist, remote copy pair operations cannot be performed by specifying virtual IDs:

• Primary volume is an LDEV of VSP, HUS VM, USP V, or USP VM

• Secondary volume is an LDEV of VSP G1000, VSP G200, G400, G600, G800, or VSP F400, F600, F800.

 The global-active device pair operation that specifies the virtual ID cannot be performed.

Displaying pair information

You can create pairs by specifying both of following in the HORCM_LDEV parameters of the Command Control Interface configuration definition file:

• Serial number of the physical storage system in the Serial# parameter

• Virtual LDEV number in the CU:LDEV(LDEV#) parameter

If the pair is created under the above conditions, the following are displayed as results of executing the pairdisplay command:

• Serial number of the virtual storage machine in the Seq# parameter

• Virtual LDEV number in the LDEV# parameter

You can create pairs by specifying both of the following in the HORCM_LDEV parameters of the configuration definition file:

• Serial number of the physical storage system in the Serial# parameter

• Physical LDEV number in the CU:LDEV(LDEV#) parameter

If the pair is created under the above conditions, the following are displayed as results of executing the pairdisplay command:

• Physical serial number of the virtual storage machine in the Seq# parameter

• Physical virtual LDEV number in the LDEV# parameter

 You can create pairs by specifying both of the following in the HORCM_LDEV parameters of the configuration definition file:

• Serial number of the physical storage system in the Serial# parameter

• Physical LDEV number in the CU:LDEV(LDEV#) parameter

For pairs created under the above conditions, the device information that is recognized by the server and the device information that results from executing the pairdisplay command are different.