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Did a vmwarebackup (vCloud director 10.5) yesterday on a new server that has windows server 2019 and sql server 2019.

 

During the backup (app consistent snapshot), commvault did not report anything wrong with the backup job what so ever.
But in the OS, all disks except c drive was lost, they where still visible in vmware but not in the os and rescan in disk management did not work.

Event logs was not very informative either other then “unexpected error” messages from sql.

System writers reported no errors on all expect “system writer” that reported 5] waiting for completion and SqlServerWriter reported 8] inconsistend shadow copy.

And still after i killed the job and the snapshot was removed, there were no disks showing up but after a reboot they were back.

The vm it self is up to date on hw version and vmware tools, windows updates is also fairly up to date.

 

I have been around long enough to know that it is i that needs to figure out whats wrong since from the vmware admin perspective this is a commvault issue since the snapshot is named _gx_ backup 😅


Has anywone seen this before? I know the next step is to try a snapshot from vmware to see if i can produce the same issue. 

Mmmmm is it an IntelliSnap backup or streaming backup? Anything strange in the logs of the access node? Can you reproduce it with another VM? 


@Onno van den Berg  Streaming backup (NBD) I have never seen this before and i could not find any thing strange in the logs either. I will try to get a agreed downtime on this vm and try an ordinary quiesced snapshot from vmware and then trigger a new backup from commvault.

I just wondered if anyone else has seen this behaviour :)


We have managed to reproduce the error and this is a known error according to vmware with no fix as of yet:

https://knowledge.broadcom.com/external/article/323103/taking-a-quiesce-snapshot-of-windows-vm.html

 


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