Thank you, Jason. As usual you're very helpful. :-)
Zitat von Jason Dillaman <jdillama@xxxxxxxxxx>:
On Tue, Sep 22, 2020 at 7:23 AM Eugen Block <eblock@xxxxxx> wrote:
It just hit me when I pushed the "send" button: the (automatically
created) first snapshot initiates the first full sync to catch up on
the remote site, but from then it's either a manual process or the
snapshot schedule. Is that it?
Indeed. You will get implicit mirroring snapshots created whenever you
enable/promote/demote. You can see the snapshots by using "rbd snap ls
--all <image-spec>" (since normally only user-created snapshots are
shown).
Besides the implicit mirror snapshot actions above, you will now need
to explicitly create a mirror snapshot via "rbd mirror image snapshot"
or via the mirror snapshot schedule in order to transfer any image
deltas.
Zitat von Eugen Block <eblock@xxxxxx>:
> Hi *,
>
> I encountered a rather strange (or at least unexpected) behaviour of
> the rbd-mirror. Maybe I don't fully understand the feature so please
> correct me if my assumptions are wrong.
>
> My two (virtual one-node) clusters are still on ceph version
> 15.2.4-864-g0f510cb110 and the following happens if I'm trying to
> configure snapshot-based rbd-mirroring:
>
> - I create a one-way replication from site A to site B
> - Mirror mode is image (for snapshot-based mirroring)
> - Import image on site A (no journal-feature enabled to make sure)
> - Image is replicated as soon as I enable the mirror mode on that
image with:
>> rbd mirror image enable pool/image3 snapshot
> - rbd info shows "snapshot_count: 1" although I haven't created a
> snapshot of this image yet, and there's also no schedule:
>
>> siteA:~ # rbd mirror snapshot schedule ls
>> siteA:~ #
>
> This is the third image in this test, I only created one snapshot
> for image1, not for the other images. Is this expected? From the
> docs I assumed I have to either create snapshots manually or
> configure the rbd mirror snapshot schedule. Could anyone please
> clarify?
>
> Thank you!
> Eugen
_______________________________________________
ceph-users mailing list -- ceph-users@xxxxxxx
To unsubscribe send an email to ceph-users-leave@xxxxxxx
--
Jason
_______________________________________________
ceph-users mailing list -- ceph-users@xxxxxxx
To unsubscribe send an email to ceph-users-leave@xxxxxxx
