Description of problem: Multiple file systems is an oldish feature in Ceph but only now being marked stable. The PR marking it stable is almost ready to be merged: https://github.com/ceph/ceph/pull/38495 Here is the documentation being worked on: https://ceph--38495.org.readthedocs.build/en/38495/cephfs/multifs/ For RHCS, multiple file systems are useful mostly for disaster recovery or testing certain file system functions (like snapshots) without disrupting production.
MultiFS feature testing is completed. Moving to verified.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Red Hat Ceph Storage 5.0 bug fix and enhancement), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2021:3294