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Snapshots and Shadow copy

Posted on 2013-06-26
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Last Modified: 2013-12-01
Hi guys, I have  2008svr hosting two hyper-v Virtual's one for SBS2008 and the other SQL, a recent failed motherboard and raid driver issue caused the  loss of 1 array, I was able to rebuild it but the backup did not take a copy of a second partition in that array, the missing partition used to contain old snapshot data and I assume shadow copy info  from when the server was setup 4 yrs ago, snapshots were disabled and merged years ago. The SBS2008 and SQL virtual's now complains the shadow copy data is invalid, but still runs ok, this sc data is used by the host to run a backup to usb and tape, and without the sc data the usb backup  fails, I have located a version of the missing partition but it is now a month out of sync with the 2 virtuals, if I restore the partition is it likely to cause problems to the virtuals. The last thing I need is them to revert to a month ago.
Or would I be better to create a new blank partition, and create new snapshots in that partition and then remove the new snapshots, I don't really want new snapshots as it could mess up my SBS2008 AD any help much appreciated
Graeme
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Question by:lambolex
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Expert Comment

by:Vijay Pratap Singh
ID: 39280337
Do one thing take the backup of the present snapshots and remove them. Then create a blank partition and new snapshot for sync. If you have one month old missing partition which  you require i think, can be used for restoration with other drives like this you have all data.
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Author Comment

by:lambolex
ID: 39283246
hi rickyzen, I have no current snapshots configured at the moment, they have not been configured for about 3 years, the missing partition only contained very old snapshot data.  

Would the running  virtuals have been updating the old files in the partition that is missing. It would appear so, as they now complain they cannot find their snapshot data, I don't understand why they would be looking for that data, if snapshots have been disabled for years.
Is the data that is saved as a snapshot in hyper -v used to provide the shadow copy data that the backup product uses, in other words  is shadow copy data completely different to  a snapshot data ? or is it the same thing.
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Accepted Solution

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lambolex earned 0 total points
ID: 39679594
I have given up on this problem and as the system still runs have decided to live with the errors
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Author Closing Comment

by:lambolex
ID: 39687950
the errors are just not worth the time to resolve the system still runs without the errors causing problems
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