Well I am back again, with another backup issue. After fixing one issue with the backup failing after a reboot, I have encountered another which is starting to cause me a lot of headaches.
The setup is thus - the backups run on a host machine running Windows Server 2012, this hosts three VM's (1x Server 2012 and 2x2008 Since the 19th of December a single backup drive has been attached for the backups (not ideal but the company had closed for the holidays) up until the 26th these backups were working flawlessly.
On the 26th the backup completed with warnings, transferring a good 90% of the data to the backup (2/3 VMs). On the 27th it transferred a bit more at around 95% (2/3 VMs). On the 28th, it didn't completely backup a single VM.
On the 28th this error appeared in the event logs and after checking in the snap-in the same errors appear on the warning days as the errored day.
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The backup operation that started at '2014-12-28T20:30:09.774946400Z' has failed with following error code '0x80780049' (None of the items included in backup were backed up.). Please review the event details for a solution, and then rerun the backup operation once the issue is resolved.
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Thanks in advance/