Hi, Le 17/02/2015 11:15, John Spray a écrit : > The MDS does not use local storage at all -- CephFS metadata is stored in RADOS (i.e. the MDS stores data via the OSDs). Ah ok. So, consequently, I can put the working directory of the mds (ie /var/lib/ceph/mds/ceph-$id/) absolutely everywhere, and for instance in the same disk used by the OS. Good news. ;) Thank you John. -- François Lafont _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com