hi mark, thanks for clarifying it a bit. we'll certainly have a look at the caching tier setup. stijn On 07/08/2014 01:53 PM, Mark Nelson wrote: > On 07/08/2014 04:28 AM, Stijn De Weirdt wrote: >> hi all, >> >> one of the changes in the 0.82 release (accoridng to the notes) is: >> >> mon: prevent EC pools from being used with cephfs >> >> can someone clarify this a bit? cephfs with EC pools make no sense? now? >> ever? or is it just not recommended (i'm also interested in the >> technical reasons behind it) > > There are limitations regarding the operations that are supported by EC > pools, so you can't directly use them for RBD/CephFS. Potentially you > can put a replication based cache tier pool in front of an EC base pool > which should work. I've tested this kind of setup with RBD and it > appears to work fine. Currently the end result is pretty slow, but we > may be able to improve it with time. > > An interesting use case to be sure. :) > > Mark > >> >> many thanks >> >> stijn >> _______________________________________________ >> ceph-users mailing list >> ceph-users at lists.ceph.com >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > _______________________________________________ > ceph-users mailing list > ceph-users at lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > >
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