Hi Loic, On Mon, Nov 10, 2014 at 6:44 AM, Loic Dachary <[email protected]> wrote: > > > On 05/11/2014 13:57, Jan Pekař wrote:> Hi, >> >> is there any possibility to change erasure coding pool parameters ie k and m >> values on the fly? I want to add more disks to existing erasure pool and >> change redundancy level. I cannot find it in docs. > > Hi, > > It is not possible to change k/m on the fly.
I'm a little confused. Does this mean even if the pool is reported to be using the updated profile, the one it is actually using is still the old profile? > >> Changing erasure-code-profile is not working so I assume that is only >> template for newly created pools. >> If it is not possible now is it planned in the feature (when)? > > Changing these parameters require a re-encoding of all objects. The interim > solution is to create another pool and move all the objects from the first > pool to the other. Is there any a easy way to do this transition other than copy these objects one by one? If disk space is an issue, a solution might be to define the old pool as a cache tier and evict its content to the storage tier. I did not test this though and there may be problems I do not yet see. > > Cheers >> >> Thank you >> With regards >> Jan Pekar, Imatic >> _______________________________________________ >> ceph-users mailing list >> [email protected] >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > -- > Loïc Dachary, Artisan Logiciel Libre > > > _______________________________________________ > ceph-users mailing list > [email protected] > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list [email protected] http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
