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doc/rbd: clarify mirror resync snapshot behavior

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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 <miki.patel132@gmail.com>
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Super User 2026-07-08 17:35:16 +05:30 committed by Miki Patel
parent 9b26437ea3
commit d80a038a00
1 changed files with 4 additions and 0 deletions
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doc/rbd/rbd-mirroring.rst
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@ -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.
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