In case the image has parent, the parent image also needs to be mirrored. After enabling the mirroring on parent image, it works as expected. Thanks! Tony ________________________________________ From: Tony Liu &lt;tonyliu0592(a)hotmail.com&gt; Sent: July 31, 2023 08:13 AM To: ceph-users(a)ceph.io; dev(a)ceph.io Subject: [ceph-users] [rbd-mirror] can't enable journal-based image mirroring Hi, The Ceph cluster is with Pacific v16.2.10. "rbd mirror image enable <image> journal" seems not working. Any clues what I'm missing? There is no error messages from the CLI. Any way to troubleshooting? ``` # rbd mirror pool info volume-ssd Mode: image Site Name: 35d050c0-77c0-11eb-9242-2cea7ff9d07c Peer Sites: UUID: 86eacc0f-6657-4742-8daf-2942ea23affd Name: qa Mirror UUID: Direction: rx-tx Client: client.infra # rbd feature enable volume-ssd/volume-aceee005-265e-44ea-a591-b6dda639a76b journaling # rbd mirror image enable volume-ssd/volume-aceee005-265e-44ea-a591-b6dda639a76b journal # rbd info volume-ssd/volume-aceee005-265e-44ea-a591-b6dda639a76b rbd image 'volume-aceee005-265e-44ea-a591-b6dda639a76b': size 40 GiB in 10240 objects order 22 (4 MiB objects) snapshot_count: 0 id: e6fce674350e55 block_name_prefix: rbd_data.e6fce674350e55 format: 2 features: layering, exclusive-lock, object-map, fast-diff, deep-flatten, journaling op_features: flags: create_timestamp: Sun Jul 30 22:21:09 2023 access_timestamp: Mon Jul 31 00:36:20 2023 modify_timestamp: Mon Jul 31 08:01:26 2023 parent: image/801d1850-de2f-443b-a30c-71966e90c118@snap overlap: 10 GiB journal: e6fce674350e55 mirroring state: disabled # rbd mirror image status volume-ssd/volume-aceee005-265e-44ea-a591-b6dda639a76b rbd: mirroring not enabled on the image ``` Thanks! Tony _______________________________________________ ceph-users mailing list -- ceph-users(a)ceph.io To unsubscribe send an email to ceph-users-leave(a)ceph.io