Hello all,
I’ve been struggling with one of the many VSS related problems during a backup operation on a 2008 R2 server from a third party software (it doesn't matter which one for the purpose of this).
I’ve already tried almost 99% of suggestions out there without getting a real solution so I dug down deep with vsstrace.exe and found out what’s happening:
…
[21:19:17.873 P:1BC8 T:2084 SECSECRC(1756) GEN] ENTER[CVssSidCollection::IsSidAllowedToFire]
[21:19:17.873 P:1BC8 T:2084 SECSECRC(1882) GEN] ExpandForVerification()
[21:20:11.576 P:1BC8 T:22B0 INCWRMPH(0875) WRITER] ENTER[CVssWriterImpl::Lock]
[21:20:11.576 P:1BC8 T:22B0 INCWRMPH(0875) WRITER] EXIT[CVssWriterImpl::Lock] Time spent: 00:00:00-0000; total: 0; HRESULT: 0
[21:20:11.576 P:1BC8 T:22B0 WRTWRTIC(2226) WRITER] Aborting due to timeout
…
Look at timestamps: the “ExpandForVerification” is freezing (21:19), so all the VSS writer timers (that where started before) reach the 60 sec. timeout (21:20) and the whole backup is aborted. The Application Log gets populated with SQLVDI and MSSQLSERVER errors, but those are the consequence, not the cause, I didn’t get any useful information about them.
Now there are (random) days when all runs well and the backup completes successfully. In such cases all ExpandForVerification operations are IMMEDIATELY (milliseconds) followed by other operations, all runs smoothly without time gaps and that should be the
normal behavior.
Unfortunately I could not find any documentation about these entries so my question is: what “SECSECRC” stand for? What’s happening during the ExpandForVerification event? What could freeze it? There’s a sort of “black
hole” in the log where I have no informations about what’s happening.
Any suggestions or documentation references?
As per this:
https://support.microsoft.com/en-us/help/2996928/backup-task-fails-with-a-time-out-error-in-windows it seems quite similar to my situation, but the hotfix is not available (no more available) for Server 2008, is there a mirror elsewhere? did someone tested
it?
Thanks!