We are using a Celerra NX4. We use Checkpoints for users home directories allowing them to recover deleted files/folders if needed. We have a situation where one user has many files within their folder and they deleted that folder. When using the "Previous Versions" tab under miccrosoft to restore the files within the folder there are NO files to restore. Its like the checkpoints never actually took the snapshot of the files for that particular folder (other folders work fine). Is their anything that would cause a checkpoint to NOT take a snapshot of the files within a folder? The files have been their for months so they have for sure been there long enough for the checkpoints to get them. Is their a security permission or anything that would of keep the Checkpoint from taking a snpashot of these files?
As a side note if it matters we run Deduplication on this volume if that would casue any issue with it.
I have tried this and still nothing...the folder that i need to restore the files from is empty at all levels. So far it only seems to be this person's folder that is having the problem and noone else (at least that we can tell at the moment). I know there were files in it cause i can look at the folder in the tape backups and all the files are present...so its just like they are missing from the snapshots.
It's on by default, but something could have turned it off, by some chance. However, if it's turned off, that might explain why you can't see anything from Previous Versions. Still, it sounds odd that no files are there.
due to the way checkpoints work (block-level) its simply not possible for some deleted/changed files to be missing while others are there (for the same fs and ckpt)
if the checkpoint is active then the data is there
whats possible:
- the deletion was done before the last remaining active checkpoint
- some Microsoft SCSF client problem to not display them
- a corrupt checkpoint (but then you would have seen other problems)
- the whole directory was deleted and recreated with the same name - then you simply need to look one layer up from the deleted directory
I would suggest you search for these file using the hidden .ckpt directory or export it via an extra temp share
to rule out an access view problem (ABE) you could also look at them using NFS or ftp
deduplication is transparent and wouldnt cause this
Primus emc234407 "Previous Versions tab on Windows client does not display files to restore when parent folder has been deleted." might apply to this case.
Rainer_EMC
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Posted May 24th, 2010 06:00
Just use the hidden .ckpt folder instead of the Previous Versions tab