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 RAID Manager 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:
- The primary volume is an LDEV in a VSP, HUS VM, or USP V/VM storage system.
- The secondary volume is an LDEV in a VSP G100, G200, G400, G600, G800 or VSP F400, F600, F800 storage system.
Global-active device pair operations that specify 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 RAID Manager 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.