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doc/rgw: caption a diagram

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Add an explanation of a diagram that shows how object data is replicated
between zones within a zonegroup.

Co-authored-by: Anthony D'Atri <anthony.datri@gmail.com>
Signed-off-by: Zac Dover <zac.dover@proton.me>
This commit is contained in:
Zac Dover 2023-02-27 19:00:04 +10:00
parent 7a29b2dd74
commit ce2bd7cb26
1 changed files with 13 additions and 0 deletions
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13
doc/radosgw/multisite.rst
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@ -64,6 +64,19 @@ something like this:
.. image:: ../images/zone-sync2.png
:align: center
At the top of this diagram, we see two applications (also known as "clients").
The application on the right is both writing and reading data from the Ceph
Cluster, by means of the RADOS Gateway (RGW).
In the middle of this diagram, we see two zones, each of which contains an
instance of a RADOS Gateway (RGW). These instances of RGW are handling the
movement of data from the applications to the zonegroup. The arrow from the
master zone (US-EAST) to the secondary zone (US-WEST) represents an act of data
synchronization.
At the bottom of this diagram, we see the master zonegroup that contains the
master zone and the secondary zone.
For additional details on setting up a cluster, see `Ceph Object Gateway for
Production <https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/3/html/ceph_object_gateway_for_production/index/>`__.