Recover DeDuped Recovery Points

After sorting out an incredible mess Storage Spaces seems to be well known for when a physical drive takes a crap I am now in what almost feels like deeper doo doo!! Ive been using DPM 2012 R2 Version 4.2.1254.0 for quite some time. The Server with the Storage Spaces mess is a 2012 R2 OS as well. To add to the fun I had had dedupe turned on the Server being backed up. The DPM Server seems to have all the backups which would be 3 recovery points per day with 5 days retention and no tapes. I am able to do the Recovery both to "original location" and to Network Location. However, as YOU would know "original location" produces an error about missing volume: \\ ?\Volume{6460399a-ef18-4e02-90a5db1ebaf20962}\ . So I tried to restore it to the Network Location and use the "missing or crashed" volume that has been deleted and recreated/rebuilt in Storage Spaces. I get a conglomeration of folders which looks like the info needs to "restore or rehydrate" the deduped data but Ill be switched if I can get it to work. Ive attached a screenshot of the file structure DPM Recovery puts on the recreated volume V:\ on Destination Server if that might be of any help.

Storage Spaces, Deduplication, DPM: am I NUTS??!!! What happened to the old days .bkf??? Any help, articles or direction to head to would sure be appreciated..   The bottom line here is the recovery points all contain 465 +/-Gb in size which is correct, however, when DPM lays it back out either in the newly created Volume on the original Server OR another location it is conglomeration of files that appear to need hydration.       

                                  

July 30th, 2015 4:36pm

Mike, I don't know how or why the system added a 69 to my username below your answer but it  did; it is still me! I am wondering if there are any articles or anything or anybody that might steer me in a direction to figure out what is going on. I really don't want to "waste" a 4Tb drive by doing what I suggested below and I suppose I could try to remove one of the drives from Storage Spaces and try to get it to "rebuild" itself on the remaining 3 drives for the Volume B: that DID come back from this whole mess. I did NOT need to do a DPM Recovery for it it simply came back after "rebuilding" the Storage Space. There MUST be something to make DPM Recover this in it's entirety. Like I said IF I try to recover to a system without DeDupe role installed I get the warning it can't be done. After 3 times restoring it to this location I always get this weird collection of folders/files. Anything at all left in your bag of many tricks??
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July 31st, 2015 10:02am

Hi,

Just FYI - We introduced a fix in DPM 2012 R2 UR5 for customers like yourself running down level operating systems on DPM sever (Windows 2012) and protecting a Windows 2012 R2 dedup volume.  Under that configuration DPM will not protect the file server in an optimized (deduped) state since Windows 2012 cannot read Windows 2012 R2 dedup volumes.   So all backup and recoveries for Windows 2012 R2 dedup volumes should be unoptimized if the DPM 2012 R2 server is on Windows 2012 and has UR5 installed.

July 31st, 2015 2:10pm

Mike, THANKS, and sorry I didn't give the right info the first time.  At the time of installing DPM 2012R2 I believe you could not yet install it on Server 2012 R2, thus, I used Std. OR something along those lines.  Bottom line, I hate to sound like a dummy but are you telling me to simply install the Rollup and things will straighten themselves out on the Recovery OR am I screwed since the current backups are all FROM the DeDuped Server 2012R2??? 

In the past of course any upgrades on the DPM Server needed most of the time manual upgrades of the agents.  Can I install the Rollup UR5 on DPM, make sure all the agents upgraded and THEN do the Recovery???  OR am I screwed because of the condition of the backups OR there is some other magic you know about??

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July 31st, 2015 3:58pm

Hi,

UR5 is more preventative than anything else, it allows for backups and restores to be done in un-optimized fashion. However even in your configuration restoring in optimized (whole volume) should work, so I'm at a loss why only the system volume information folder is all that is restored - that won't be useful without the actual files also being restored.   So if you need to get real data recovered I suggest opening up a support ticket so the incomplete restore can be investigated fully.

July 31st, 2015 9:10pm

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