I've started getting errors from VSS on a Win2008 R2 server that is a NW
7.6.2 storage node. And the last couple nights, it has been partially
failing (partially meaning that some files weren't backed up, but most
were).
(I've never changed any settings for VSS, as Networker handles all that)
First thing I see, in SYSTEM log of the client:
(E: is the main data drive, and X: is the AFTD disk that Networker writes
to)
----------------------
Event 33, source: volsnap:
The oldest shadow copy of volume E: was deleted to keep disk space usage
for shadow copies of volume E: below the user defined limit.
Event 24, source: volsnap:
There was insufficient disk space on volume X: to grow the shadow copy
storage for shadow copies of E:. As a result of this failure all shadow
copies of volume E: are at risk of being deleted.
Event 35, source volsnap:
The shadow copies of volume E: were aborted because the shadow copy
storage failed to grow.
--------------------
And then Networker reports that some files weren't backed up.
E: Used size = 665G
X: Free space = 609G (this drive keeps 2 days worth of backups)
So I guess what I need to do is for VSS to not use so much space for it's
snapshots, so it doesn't run out of room. I don't fully understand how VSS
figures into this (yes, I've read the VSS Guide from EMC, no I still don't
understand it). It sounds like what's happening is that the snapshot
doesn't have enough room to grow to the size it wants to be. So do I need
to tell VSS to make the snapshots smaller, so it won't need such a big
block of space at one time for each snapshot?
You can't turn off VSS in Win 2008 R2 backups in Networker, I'm told, so
that unfortunately is not an option.
Or should I be changing the saveset definitions, to backup C: and E: as
separate jobs? Or enumerating the folders of E: explicitly, rather than
using saveset ALL?
I'm confused and lost. Anybody have a guide post to get me back on track?
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