Hi Greg, We are planning to create 3 PB EC based storage cluster initially. what would be the recommended hardware configuration for creating caching pool? How many nodes will cache pool require to cater the 3 PB storage cluster? What is the size and network connectivity of each node?
-- Mohammed Pakkeer On Wed, Jan 21, 2015 at 11:25 AM, Gregory Farnum <[email protected]> wrote: > 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 <[email protected]> > 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 <[email protected]> > wrote: > >> > >> On Tue, Jan 20, 2015 at 5:48 AM, Mohamed Pakkeer <[email protected]> > >> 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 > > > > > > > > > > >
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