Local storage is filled during a full backup

[JeanPhil]

Hi all,

I have a Proxmox VE 8.2.2 with few VM and a Nakivo v11 Trial that support Proxmox platform. This Nakivo makes backups of the main VM which is a Windows Server.

This morning i found the Windows VM stuck in I\O error state. Impossible to stop or start the VM. After a forced reboot of the host i checked disks and space utilization and everything it's ok.

I investigated further and noticed that during the Nakivo full backup of saturday night, the "local" storage has reached maximum capacity. One week before 95GB out of 100GB. The I\O error of the VM it is due to the full space on "local" i think so.

Nakivo backup send data to an external storage (NAS).

I need to understand why the "local" has filled up, so which log should I look at?

 

[cheiss]

Hi,

This Nakivo makes backups of the main VM which is a Windows Server.

while I'm not familiar with this software - but it seems to the backups by itself, not using any built-in facilities from Proxmox VE, judging from a quick look.
This means you have to talk with the software vendor directly, as it doesn't have anything to do with Proxmox VE.
On a hunch, I guess it does something similar to "backup fleecing" that features with Proxmox Backup Server, as in using a temporary file during the backup process to better handle I/O - but a bad implementation which does not limit size.

 

[bocruz0033]

Hi all,

I have a Proxmox VE 8.2.2 with few VM and a Nakivo v11 Trial that support Proxmox platform. This Nakivo makes backups of the main VM which is a Windows Server.

This morning i found the Windows VM stuck in I\O error state. Impossible to stop or start the VM. After a forced reboot of the host i checked disks and space utilization and everything it's ok.

I investigated further and noticed that during the Nakivo full backup of saturday night, the "local" storage has reached maximum capacity. One week before 95GB out of 100GB. The I\O error of the VM it is due to the full space on "local" i think so.

Nakivo backup send data to an external storage (NAS).

I need to understand why the "local" has filled up, so which log should I look at?

That’s odd. I believe you can send the nakivo support team a request to help you resolve your problem. I’ve had experience with them and they’re quick to reply.