2012-08-01 01:25 AM
We are planing hourly snapmirror update from source filer FAS2040 (DC) to destination filer FAS2040 (DR) for a volume.
Our query is below.
Suppose at 11.45 AM , we come to know that there was file corruption at source (DC) and it happened at 10.30 am .
Can we revert backup to status at 10.00 am by using reverse snapmirror resyncs from DR to DC ?
If yes, What is the procedure ?
Can we achive this by deleting snapmirror snapshot of 11.00 am from both DC and DR?
2012-08-01 02:04 AM
VSM is exact mirror of source anyway. So if you update every hour, at 11:00 you will have the same corruption dated 10:30 on destination too. You can simply revert to snapshot earlier than 10:30 on source as long as you still have it.
VSM is not really intended for such sort of things. To protect against logical corruption local snapshots are just fine.