You can run CephFS with a caching pool that is backed by an EC pool, but you can't use just an EC pool for either of them. There are currently no plans to develop direct EC support; we have some ideas but the RADOS EC interface is way more limited than the replicated one, and we have a lot of other things we'd like to get right first. :) -Greg On Tue, Jan 20, 2015 at 9:53 PM, Mohamed Pakkeer <mdfakkeer@xxxxxxxxx> wrote: > Hi Greg, > > Thanks for your reply. Can we have mixed pools( EC and replicated) for > CephFS data and metadata or we have to use anyone pool( EC or Replicated) > for creating CephFS? Also we would like to know, when will the production > release of CephFS happen with erasure coded pool ? We are ready to test > peta-byte scale CephFS cluster with erasure coded pool. > > > -Mohammed Pakkeer > > On Wed, Jan 21, 2015 at 9:11 AM, Gregory Farnum <greg@xxxxxxxxxxx> wrote: >> >> On Tue, Jan 20, 2015 at 5:48 AM, Mohamed Pakkeer <mdfakkeer@xxxxxxxxx> >> wrote: >> > >> > Hi all, >> > >> > We are trying to create 2 PB scale Ceph storage cluster for file system >> > access using erasure coded profiles in giant release. Can we create >> > Erasure >> > coded pool (k+m = 10 +3) for data and replicated (4 replicas) pool for >> > metadata for creating CEPHFS? What are the pros and cons of using two >> > different pools to create CEPHFS ? >> >> It's standard to use separate pools. Unfortunately you can't use EC >> pools for CephFS right now. >> -Greg > > > > > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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