[PVE-User] Unresponsive VM(s) during VZdump

[Iztok Gregori]

Hi Mike!

On 09/05/24 11:30, Mike O'Connor wrote:
> You need to enable fleecing in the advanced backup settings. A slow 
> backup storage system will cause this issue, configuring fleecing will 
> fix this by storing changes in a local sparse image.

I see that fleecing is available from PVE 8.2, I will enable it next 
week once all the nodes will be upgraded to the latest version.

Thanks for the suggestion.

In the meantime I found this thread on the forum:

https://forum.proxmox.com/threads/high-io-wait-during-backups-after-upgrading-to-proxmox-7.113790/

which mention the max_workers parameter. I change it to 4 for the next 
scheduled backup and see if there are some improvements (I migrated the 
affected VMs to catch the new configuration).

I will keep you posted!

Iztok