Hello, everyone! I have a few questions related to the CephFS part of Ceph:
- is it production ready? - 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; - 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? - can a CephFS be mounted simultaneously from multiple clients? - 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; - create some quota defined folders for user's home directories, in /opt/fs1 and /opt/fs2; Thank you very much! Regards, Bogdan
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