[PVE-User] Timeouts while creating backups on PBS

[Mark Schouten]

Hi,

Yes. Verification causes massive issues. I do not see another workaround 
than ‘use ZFS and try to avoid running any verifications’..

—
Mark Schouten, CTO
Tuxis B.V.
mark at tuxis.nl / +31 318 200208


------ Original Message ------
>From "Sven" <sven at shelldog.de>
To pve-user at lists.proxmox.com
Date 3/10/2023 4:02:09 PM
Subject [PVE-User] Timeouts while creating backups on PBS

>Hello
>
>we have several clusters (~250 VMs) attached to one PBS and run daily backups. Each day, there are random timeouts causing some backups to fail.
>
>I've disabled the instant verification process to reduce IO-load on the PBS during that time. The timeouts are gone since then.
>
>Because we do want to have verified backups, we tried out scheduled verification tasks. Then we have the problem, that it takes to long (>1d) to verify all ~250 new snapshots sequentially. 50 parallel verify jobs works well.
>
>My current idea is to write a custom scheduler to make sure that there is a custom amount of verify jobs simultaneously when no backups are running.
>
>Is there a better way I don't see? If I may place a feature request: It would be nice to be able to specify how many verify jobs can work simultaneously.
>
>Thanks!
>Sven
>
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