I have few problems with VSS Full Backup on WS 2012 R2.
I have 3 physical servers with few VM's on each. I'm doing Full Backup everyday via Windows Server backup. On each server I have different error.
I have here 8 VM's (6 are Online all the time, and 2 are currently offline). It completes backup for 5Online VM's + 2 Offline, but it says that one VM's backup failed because it was offline (which it wasn't cause it has uptime like 30days+ and I'm using it all the time). There is no info about it, just Event ID 519 in event viewer that says backup has failed for that voulme.
4 VM's here, 2 Online 2 Offline, backup failed for one offline VM (which is currently offline), but at the other offline it completed backup normally.
5 Online VM's - all completed successfully.
Now, on every VM I have checked backup in Integration Services. I'm doing full backup once a day, it is backup to a volume (each physical server has added space via iSCSI.
Any idea? Best regards