One backup at a time in the cluster

[l.ansaloni]

Hi,
I use these versions:

• Proxmox Backup Server 2.2-6
• Proxmox Virtual Environment 7.2-11/b76d3178 (running kernel: 5.15.53-1-pve)

I have a 3 node proxmox clustert with ceph storage and I backup the VMs with PBS using a network share from a NAS with 10Gbps connectivity as a datastore.

If I manually back up one VM at a time, the speed is sufficient and there are no problems with slowing down the VM, while if the backup starts automatically from the schedule, 3 simultaneous backups are parallelized, one for each node of the cluster and this slows down every single backup because the destination is only one.

Would it be possible to make sure that even the scheduled backup is performed one VM at a time and not in parallel for each physical?

 

[Neobin]

For reference:
https://bugzilla.proxmox.com/show_bug.cgi?id=3086

 

[manwe]

I'm in the same situation. I have a 8 node cluster and having all of them running vzdump at the same time is a pain. I'd like to have them serialized or baybe run 2 at a time.