Dear all,

Got a question regarding MV/A.

In a customer DR scenario, the primary LUNs (total 5, a CX4-240 storage) have Snapview Snapshot created daily and MV/A setup to sync data (hourly) to remote DR site (VNX5500).

the customer wanted to know that, when there is need to rollback the snapshot to the primary LUNs, do the remote site need to be full sync, or just resync the mirror will be enough?

There is no document mentioning what shall be done AFTER the rollback.  It just mentioned that we need fracture the mirror before rollback.

Based on the documents (Snapview knowledge), it seems only resync the mirror will work, but I have doubt on it as in customer case, the snapshot can be taken on 6:00am and rollback on 8:00pm.  There are numerous synchronization performed through MV/A, and I am not sure if the storage know the difference and perform the resync correct,

Any idea?

Thanks a lot,

Rayson Wong