[PVE-User] Excluding individual vdisks from PVE backups?

[Frank Thommen]

Dear all,

we are doing daily backups of every VM in our PVE cluster to the 
internal Ceph storage (snapshot mode, ZSTD compression).  However one of 
the VMs takes six to seven hours for the backup, which is unbearable and 
also interferes with other backup processes.  The delay is probably due 
to a 50% filled 500G vdisk attached to the VM.  Is there a way to 
exclude this specific vdisk from the PVE backup schedule, while still 
retaining the rest of the VM in the backup?

We don't have PBS in place and will not have it in the near future for 
different reasons. So PBS would not be an option for us.

Cheers, Frank