My previous thread about this got locked, so I'm starting a new one:
Every once in a while, one of the jobs on my BackupExec 2012 media server backing VMware VMs with GRT reports, for one of the VMs:
V-79-57344-38725 - Ein oder mehrere virtuelle Datenträger enthalten Datenträger, die Granular Recovery Technology (GRT) nicht unterstützten. Für diese Datenträger können keine selektiven Wiederherstellungen ausgeführt werden.
Translation: One or more virtual storage media contain storage media that did not support GRT. For those storage media no selective restores can be performed.
On the next run, the same VM will usually back up just fine again. The VMs for which this happens vary across the whole set. Indeed, on the last three backup runs, I had two different VMs reporting this problem, ie. one did not support GRT on the incremental backups Wednesday and Thursday but did on the full backup Friday night, while another one did support GRT on Wednesday and Thursday but not on Friday, and both of these didn't see any problem supporting GRT on Tuesday.
On my last posting I got the recommendation to open a support case should this happen again, but that's always extremely time-consuming and frankly I don't see how it might lead anywhere as Symantec support, in my experience, needs problems to be reliably reproducible in order to investigate them.