Use the Create Enhanced Remote Mirroring Wizard - Select a Secondary Logical Drive dialog to select the to be used as the in the mirrored pair.
The logical drives that appear in this dialog are sorted by capacity, starting with the logical drive nearest to the capacity
of the capacity. Logical Drives with identical capacity are sorted alphabetically. Selected primary logical drives and selected
secondary logical drives can have different levels, , and parameters.
Keep these guidelines in mind when you select a secondary logical drive:
Secondary logical drives are read only. that are mapped to a logical drive no longer have write access to the logical drive after the logical drive is selected as
the secondary logical drive in a. Defined mappings remain, which permit any mapped host to write to the logical drive if it is promoted to the primary role
during a , or if the mirror relationship is removed.
are not allowed on a secondary logical drive. If a logical drive has any type of reservation when it is selected as a secondary
logical drive, the primary logical drive detects a reservation conflict at its first write request to the secondary logical
drive. The primary logical drive clears the reservation automatically. Subsequent requests to place a reservation on the secondary
logical drive are rejected.
A logical drive can participate in only one mirror relationship.
On an DS4500 storage subsystem or an DS4400 storage subsystem, up to 64 logical drives may participate in mirror relationships.
On an DS4300 storage subsystem, up to 32 logical drives may participate in mirror relationships.
If the logical drive that you want to use is not in the list, make sure that its capacity is greater than or equal to the
capacity of the primary logical drive.
If compatible logical drives do not exist on the storage subsystem, an error message appears. Click OK in the error dialog to return to the Create Enhanced Remote Mirroring Wizard - Select Remote Storage Subsystem dialog.
Select the secondary logical drive to be included in the mirrored pair. You can select only one.These logical drives are not
valid secondary logical drive candidates and do not appear in the list:
Logical Drives that are already participating in a mirror relationship
Logical Drives that are with associated flashcopies
Standard logical drives with a
Standard logical drives with actual capacities that are smaller than the primary logical drive.
Note:
If a secondary logical drive is chosen with an actual capacity that is larger than the primary logical drive, the is restricted to the size of the primary logical drive.