CrashPlan and VSS (Volume Shadow Copy) Errors with Fix

I have been getting Volume Shadow Copy (VSS) errors in my Windows Application log every few seconds. I use Crashplan to back up my machine and many others.

I found out that Crashplan stores its cache on my main hard drive, it was several gigs in size.

Since I keep my temp files on a different drive from my OS, I moved the cache to the other drive and the errors ceased.

So If you have a log full of VSS errors, you can try moving your Crashplan cache to another drive. You can change the location by editing the node cachepath in ProgramData\CrashPlan\conf\my.service.xml. Be sure to restart the crash plan service for the change to take.

The VSS errors which I was receiving:


Volume Shadow Copy Service error: Error calling a routine on the Shadow Copy Provider {b5946137-7b9f-4925-af80-51abd60b20d5}. Routine returned E_INVALIDARG. Routine details GetSnapshot({00000000-0000-0000-0000-000000000000},0000000000358EB0).
Get Shadow Copy Properties
Execution Context: Coordinator

Turns out that VSS was conflicting with CrashPlan. Easy fix but if you’re not looking for it you may miss it and backups may not complete.

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