You would need to create a new pool and migrate the data to that new pool. Replicated pool fronting an EC pool for RBD is a known-bad workload: http://docs.ceph.com/docs/master/rados/operations/cache-tiering/#a-word-of-caution but others mileage may vary I suppose.
In order to migrate you could do an RBD at a time, I would probably take a snapshot and than do an `rbd cp` operation from the poolA/snap to poolB/image If you are okay with the VMs being powered down you could do an `rbd mv` which doesnt support renames across pools, though I would prefer the cp method. You could also do a wholesale pool copy using `rados cppool` see http://ceph.com/geen-categorie/ceph-pool-migration/ best of luck. On Sat, Jan 13, 2018 at 6:37 PM, moftah moftah <moft...@gmail.com> wrote: > Hi All, > is there a way to switch a pool that is set to be EC to being replicated > without the need to switch to new pool and migrate data ? > > I am getting poor results from EC and want to switch to replicated but i > already have customers on the system . > i using ceph 11 > the EC already have cache tier that is replicated > > Thanks > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > -- Respectfully, Wes Dillingham wes_dilling...@harvard.edu Research Computing | Senior CyberInfrastructure Storage Engineer Harvard University | 38 Oxford Street, Cambridge, Ma 02138 | Room 204
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