On Wed, Sep 25, 2013 at 8:44 PM, Sage Weil <sage@xxxxxxxxxxx> wrote:
On Wed, 25 Sep 2013, Aaron Ten Clay wrote:This is no longer true. Can you tell us where you read it so we can fix
> Hi all,
>
> Does anyone know how to specify which pool the mds and CephFS data will be
> stored in?
>
> After creating a new cluster, the pools "data", "metadata", and "rbd" all
> exist but with pg count too small to be useful. The documentation indicates
> the pg count can be set only at pool creation time,
the documentation?
ceph osd pool set data pg_num 1234
ceph osd pool set data pgp_num 1234
Repeat for metadata and/or rbd with an appropriate pg count.
Thanks! Maybe I just misinterpreted the documentation. The page
http://ceph.com/docs/master/rados/operations/placement-groups/
implies
(to me, anyway) that the number of placement groups can't be changed
once a pool is created. Under the "Set Pool Values" heading, pg_num
isn't listed as an option.http://ceph.com/docs/master/rados/operations/placement-groups/
You can also create additional data pools and map directories to them, but
> so I am working under the assumption I must create a new pool with a
> larger pg count and use that for CephFS and the mds storage.
this probably isn't what you need (yet).
sage
-Aaron
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