From d80a038a00fa6e405a3df2ec66f7fdd303a4370c Mon Sep 17 00:00:00 2001 From: Super User Date: Wed, 8 Jul 2026 17:35:16 +0530 Subject: [PATCH] doc/rbd: clarify mirror resync snapshot behavior Add documentation explaining that rbd mirror resync only copies image state and data up to the last mirror-snapshot for snapshot-based mirroring. Document the requirement to create a new mirror-snapshot on current primary so that new changes (including resize operation) gets reflected on secondary after resync. Fixes: https://tracker.ceph.com/issues/78050 Signed-off-by: Miki Patel --- doc/rbd/rbd-mirroring.rst | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/doc/rbd/rbd-mirroring.rst b/doc/rbd/rbd-mirroring.rst index 5357ce21554..dbeaa179763 100644 --- a/doc/rbd/rbd-mirroring.rst +++ b/doc/rbd/rbd-mirroring.rst @@ -558,6 +558,10 @@ For example:: local cluster's ``rbd-mirror`` daemon process is responsible for performing the resync asynchronously. +.. note:: For snapshot-based mirroring, resync replicates the image contents + only up to the most recent mirror-snapshot. Create a new mirror-snapshot on + the primary image to sync the latest updates. + Mirror Status ============= -- 2.47.3