There are two types of backup operations (with different copy units for each type):
Backup operation in units of logical volumes (method with GDS Snapshot)
Backup operation in units of slices (method without GDS Snapshot)
For details on how to confirm and select the type of operation, refer to "3.8.1.1 Configuring the unit of SDX object operations"
Note
The two types of operation cannot be performed on the same Managed Server.
The unit of SDX object operations is normally set as follows:
When PRIMECLUSTER GDS Snapshot has been included PRIMECLUSTER GDS 4.1A30 or later
In cases other than the above
For operation in units of slices in an environment with PRIMECLUSTER GDS 4.1A30 or later installed, use the command described in stgxfwcmsetsdx (SDX object management unit configuration command), and then set operation in units of slices by taking action as described in "3.4.4 Fetching device information on a Managed Server".
Note
If PRIMECLUSTER GDS has already been upgraded from version 4.1A20 or earlier to 4.1A30 or later, follow the procedure below to change the setting to operation in units of logical volumes.
Refer to "3.6.4 Deleting the Managed Server", and delete the Managed Server.
Use the command described in stgxfwcmsetsdx (SDX object management unit configuration command), to specify management in units of logical volumes.
Perform the steps as described in "3.4.3 Registering a Managed Server", and perform the subsequent operations.
For operation in units of slices as before, the above procedure need not be followed.
If AdvancedCopy Manager has been upgraded from version 10.3 or earlier in an environment that includes PRIMECLUSTER GDS 4.1A30 or later, the operation described in "3.4.4 Fetching device information on a Managed Server" results in a change to the unit of an SDX object operations will detect a change to a managed device.
To keep the operation in units of slices, abort the fetching operation without accepting the detected change, and use the command described in stgxfwcmsetsdx (SDX object management unit configuration command) to set operation in units of slices, and re-specify the required values as necessary.
