ceph/ceph — pull request #1180 by dachary (2014-02-04 00:36:38+00:00)
Title: DNM: mon: check cluster features before rule create-erasure

It could be part of https://github.com/ceph/ceph/pull/1144 but moving it to a separate pull request is an attempt to stop this pull request from growing forever ;-)

Related to http://tracker.ceph.com/issues/7313
Depends on https://github.com/ceph/ceph/pull/1144