[pve-devel] ceph 0.56 is coming. do we need to keep compatibility with 0.48 ?

[Stefan Priebe]

Am 02.01.2013 14:38, schrieb Alexandre DERUMIER:
> Hi all (and happy new year ;),
Happy new Year!

> Ceph 0.56 stable is coming soon (testing for now, but should go in stable branch in coming days).
> Do you need to keep compatibility with 0.48 clusters with the storage plugin ? (as rbd is not officially supported)
To no! My production cluster is already running 0.56.

> I see 2 new things:
> -image format V2. required for cloning. This require to pass format argument when we create the volume.
I already have patches for that - but they're short ;-)

> - rbd ls -r
>    display all infos of rbd images (size,parent,...) with 1 api call. (currently we need to call "rbd info" for each volume)
That would be great!

> So, Do we need to keep compatilibity, and introduce a new storage param like "version" or not ?
I would say dropping support for old version does not harm. Ceph itself 
recommands upgrading.

Greets,
Stefan