You must resynchronize a volume pair after suspending it to allow
operations to continue.
To get access to the target volumes or for maintenance of the remote
storage unit, you can suspend (pause) the
Metro Mirror volume
pair.
Metro Mirror stops
transferring data to the target volume. The source storage unit keeps track
of all changed data on the source volume, and after you resume the connection
only the changes to the source volume are copied to the target volume.
Perform
the following steps to suspend a Metro Mirror relationship: