Kemo,
The next phase of development for replication is to enable replication
of groups of volumes [1].
I remember, in the past, there being discussion around how we handle
replication across multiple data centers and don't know that we came to
a conclusion. I think we would need to better understand the use case
here? Are you picturing two data centers that have all their data
replicated between the two locations. You want to then be able to have a
Cinder access those volumes concurrently in both locations?
Theoretically that could be possible with a shared database between the
two datacenters. I am not aware of anyone actually operating with such
a configuration.
Jay
[1] https://blueprints.launchpad.net/cinder/+spec/replication-cg
On 01/13/2017 12:15 PM, Klemen Pogacnik wrote:
HI!
I've been playing with dual site openstack clouds. I use ceph as a backend for
Cinder volumes. Each openstack has its own ceph cluster. Data replication
is done by ceph rbd mirroring.
Current Cinder replication design (cheesecake) only protects against
storage failure.
What about support for multi site deployments and protection of whole
data center.
Has any work been planned or done yet on that topic?
Kemo
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