Thomas,

Sounds like you're looking for "ceph mds remove_data_pool".  In
general you would do that *before* removing the pool itself (in more
recent versions we enforce that).

John

On Wed, Oct 1, 2014 at 4:58 PM, Thomas Lemarchand
<thomas.lemarch...@cloud-solutions.fr> wrote:
> Hello everyone,
>
> I plan to use CephFS in production with Giant release, knowing it's not
> perfectly ready at the moment and using a hot backup.
>
> That said, I'm currently testing CephFS on version 0.80.5.
> I have a 7 servers cluster (3 mon, 3 osd, 1 mon), and 30 osd (disks).
>
> My mds has been working for a few months now.
> I added multiple data pools to mds "ceph mds add_data_pool 6", used them
> with "setfattr -n ceph.file.layout.pool -v 6 misc".
>
> Now there is a mds data pool I don't use anymore, so I removed every
> files inside it, to the point "rados df" tells me "0 object". I can't
> find a way to delete it inside mds, so it's still listed in "ceph mds
> dump" : "data_pools      0,3,4,6". I deleted the pool "ceph osd pool
> delete ..." but it's still listed in data_pools of mds.
>
> Anyone know how to do that ?
>
> Tank you !
>
> --
> Thomas Lemarchand
> Cloud Solutions SAS - Responsable des systèmes d'information
>
>
>
>
>
>
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