Hi, Le 22/03/2015 09:29, Bogdan SOLGA a écrit : > I have a few questions related to the CephFS part of Ceph: > > - is it production ready? Currently, this is not considered "production ready". However, some people use Cephfs in production and I think they are satisfied. Personally, we are going to use Cephfs in production for web servers (not well tested yet). > - can multiple CephFS be created on the same cluster? The CephFS creation > <http://docs.ceph.com/docs/master/cephfs/createfs/> page describes how > to create a CephFS using (at least) two pools, but the mounting > <http://docs.ceph.com/docs/master/cephfs/kernel/> page does not refer to > any pool, when mounting the FS; No, even with Hammer, you can have only one Cephfs per cluster (and indeed cephfs uses 2 pools: one for the data and one for the metadata). > - besides the pool quota > <http://docs.ceph.com/docs/master/rados/operations/pools/#set-pool-quotas> > setting, are there any means by which a CephFS can have a quota defined? I > have found this > <https://wiki.ceph.com/Planning/Blueprints/Firefly/Cephfs_quota_support> > document, which is from the Firefly release (and it seems only a draft), > but no other references on the matter. > > > - this <http://docs.ceph.com/docs/master/man/8/mount.ceph/> page refers > to 'mounting only a part of the namespace' -- what is the namespace > referred in the page? Sorry, for these questions, I'm unqualified. ;) > - can a CephFS be mounted simultaneously from multiple clients? Of course, this is the goal. > - what would be the recommended way of creating system users on a > CephFS, if a quota is needed for each user? create a pool for each user? or? > > > In order to understand better my questions, my use-case would be the > following: > > - create a cluster from multiple OSDs (at least 20); > - create 4 pools on it - p1-4; > - create a CephFS from pools p1 and p2 and mount it in /opt/fs1; > - create a CephFS from pools p3 and p4 and mount it in /opt/fs2; Currently, it's impossible to have 2 cephfs in the same cluster. > - create some quota defined folders for user's home directories, in > /opt/fs1 and /opt/fs2; Sorry I don't know for the quota. HTH. -- François Lafont _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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