Hi, is it possible to establish RBD mirroring between replicated and erasure coded pools? I'm trying to setup replication as described on http://docs.ceph.com/docs/master/rbd/rbd-mirroring/ without success. Ceph 12.2.5 Luminous
root@local:~# rbd --cluster local mirror pool enable rbd-2 pool 2018-07-31 17:35:57.350506 7fa0833af0c0 -1 librbd::api::Mirror: mode_set: failed to allocate mirroring uuid: (95) Operation not supported No problem with replicated pool: root@local:~# rbd --cluster local mirror pool enable rbd pool root@local:~# Pool configuration: root@local:~# ceph --cluster local osd pool ls detail pool 13 'rbd' replicated size 3 min_size 2 crush_rule 0 object_hash rjenkins pg_num 256 pgp_num 256 last_change 2219 flags hashpspool stripe_width 0 compression_mode none application rbd pool 15 'rbd-2' erasure size 6 min_size 5 crush_rule 4 object_hash rjenkins pg_num 64 pgp_num 64 last_change 2220 flags hashpspool,ec_overwrites stripe_width 16384 application rbd BR, -- Ilja Slepnev
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