Disk I/O failure occurred during broken pipeline with NFS server

[sif7en]

Hi,

We've noticed a strange behavior of one of our most important VM's. During a backup process we experienced a broken pipeline behavior to our NFS servers, where we had a capacity overload (NFS couldn't except backups due to full storage).

During regular backup execution (in snapshot mode) there was an I/O error present as if there is a disk failure on VM.

My questions to you is - is it normal for a backup interruption to cause such an abnormal behavior to a VM ? During this error our Database collapsed with out any reason ...

Regards,Peter

 

[Chris]

Hi,
yes this is expected, the VM IO is not independent from the backup target. For a more detailed explanation and a solution provided by setting up a fleecing image please see https://pve.proxmox.com/pve-docs/pve-admin-guide.html#_vm_backup_fleecing