Forward resynchronization
You can use one of the following methods to forward resynchronize pairs:
Normal Copy (Primary > Secondary): A full forward resynchronization from the P-VOL to the S-VOL. During a Normal Copy, only the P-VOL is accessible to hosts for read/write operations.
Quick Resync (Primary > Secondary): A forward resynchronization from the P-VOL to the S-VOL where data is not copied or resynchronized. The volumes are paired (PAIR status). The update copy operation copies the differential data to the S-VOL.
During a Quick Resync, the P-VOL is accessible to hosts for read/write operations. Quick Resync does not ensure data consistency, even if there is no host I/O during the resynchronization.
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