Maybe this would be an option for you:

On Tue, Oct 18, 2016 at 8:18 PM, yan cui <> wrote:

> Hi Guys,
>    Our company has a use case which needs the support of Ceph across two
> data centers (one data center is far away from the other). The experience
> of using one data center is good. We did some benchmarking on two data
> centers, and the performance is bad because of the synchronization feature
> in Ceph and large latency between data centers. So, are there setting ups
> like data center aware features in Ceph, so that we have good locality?
> Usually, we use rbd to create volume and snapshot. But we want the volume
> is high available with acceptable performance in case one data center is
> down. Our current setting ups does not consider data center difference. Any
> ideas?
> Thanks, Yan
> --
> Think big; Dream impossible; Make it happen.
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