Running 10.1.327.1001
Snapshots will (usually) run fine all week - then every week between Thursday 3pm and Friday 8am, will get:
Failed to create snapshot on server 'xxxxx', volume 'Z:\' containing backup destination 'Backup Destination - Main'.
Tried adjusting amount of data being backed up, restarting servers throughout the week, everything. Snapshots will resume being made the following week on Monday.
