Redhat VirtIO developers would like to coordinate with Proxmox devs re: "[vioscsi] Reset to device ... system unresponsive"

[_gabriel]

Might try using Virtio SCSI

it's mandatory , as this is the point of the topic.

 

[band20]

it's mandatory , as this is the point of the topic.

didn't helps neither unfortunately.

 

[_gabriel]

then your problem is elsewhere.
that's not this topic.
slow destination backup can slowdown VM up to crash.
create new topic, or append to existing topics about it.

 

[band20]

Indeed, the problem has appeared soon after we changed the provider to Starlink which has very low upstream bandwidth and the backup we do is cloud based. so ineed that migh be a reason. thanks for the hint.

 

[_gabriel]

the recommended way for primary backup, is local backup, then secondary backup can sync from primary backup, which not disturb the VM.

 

[Interpipes]

Indeed, the problem has appeared soon after we changed the provider to Starlink which has very low upstream bandwidth and the backup we do is cloud based. so ineed that migh be a reason. thanks for the hint.

Assuming it is an option with however you are backing up, have you tried turning on backup fleecing? https://pve.proxmox.com/pve-docs/chapter-vzdump.html#_vm_backup_fleecing