Hi all, We currently have a CephFS cluster dedicated to a single user running an HPC cluster. The client machines use a single keyring which accesses the whole cephfs filesystem (i.e. there are no mds prefix or namespace limitations in their client caps). We want to transition this user (and the cluster) to OpenStack Manila, using the CephFS Native driver. So we're wondering what would be the best way to make this transition. I think we have these options: 1. Create a new fs for Manila, give the HPC users Manila quota then let them migrate their data and mounts. I'm not sure if multi-fs is stable in 10.2.3 ?? 2. Configure Manila to use the existing fs, with Manila data ending up in the /volumes directory. HPC users would again create a new Manila share and migrate their data. This would be easier and is for sure stable -- but it's not clear to me if the Manila share namespaces would break the existing native usage of the HPC machines. We'd prefer (2), but just wanted to check if there is something we missed. Best Regards, Dan van der Ster CERN IT _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com