[pve-devel] consistent backups / snapshots

[Stefan Priebe - Profihost AG]

Am 22.11.2012 14:41, schrieb Alexandre DERUMIER:
> I see 2 ways :
>
> - snapshot with vmstate. (so pending write in memory are saved).

Does this work with rbd snap?

> - implement qemu guest agent qmp protocol ,and send fs-freeze qmp command to freeze the filesystem, before doing the snapshot.
>    (I have seny some prelimary patches some months ago, need to be polish)

Patches? this sounds experimental - patches for guest kernel? For qemu?

Greets,
Stefan

> ----- Mail original -----
>
> De: "Stefan Priebe - Profihost AG" <s.priebe at profihost.ag>
> À: pve-devel at pve.proxmox.com
> Envoyé: Jeudi 22 Novembre 2012 11:35:05
> Objet: [pve-devel] consistent backups / snapshots
>
> Hello list,
>
> i was trying to make consistent rbd snapshots. What is the recommanded
> method in PVE / qemu to flush all buffers / be able to make a consistent
> backup?
>