Hello List,

when reading:
  https://docs.ceph.com/docs/master/rbd/rbd-mirroring/
it says: (...)Journal-based: This mode uses the RBD journaling image
feature to ensure point-in-time, crash-consistent replication between
clusters(...)

Does this mean, that mean, that we have some kind of transaction logs
where we will be able to "walk to" a specific time to restore a
specific state?

Like: 
https://blog.sleeplessbeastie.eu/2016/02/29/how-to-perform-postgresql-point-in-time-recovery/

Thanks,
Michael
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