[pve-devel] qemu 7.0 : fleecing backup (aka: local temp write cache"

DERUMIER, Alexandre Alexandre.DERUMIER at groupe-cyllene.com
Sun Jul 31 20:24:18 CEST 2022

Le 31/07/22 à 19:47, Laurent GUERBY a écrit :

On Sun, 2022-07-31 at 16:49 +0000, DERUMIER, Alexandre wrote:

Le 31/07/22 à 18:19, Dietmar Maurer a écrit :

This is really a blocker for me,I can't use pbs because I'm using
is production, and a 7200k hdd backup in a remote 200km site with

Why don't you use a local(fast) PBS instance, then sync to the slow

Hi Dietmar.

Can I use a small local fast PBS instance without need to keep the
datastore chunks ?

I have 300TB nvme in production, I don't want to buy 300TB nvme for

I known that I can keep more retentions on remote storage slow, but
about the local fast pbs ?

Hi Alexandre,

I had the exact same issue:


Here is the bugzilla:


So no AFAIK there's no way to do a partial sync. A tool to sync a
specific backup (instead of a group) and a bit of scripting would do
the job.



Hi Laurent !

I think that my need is a little bit different.

looking at your forum message

"have it sync to our current existing primary PBS server (SSD). The NVME server will have less space than the SSD server and not enough space to have a copy of all backups of the primary,"

I think It's not the same. I need the inverse.  My primary storage need to be fast and small, and secondary synced remote is big && slow.

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