On 04/24/2015 05:17 PM, GuangYang wrote:
Hi cephers,
Recently I am investigating the geo-replication of rgw, from the example at
[1], it looks like if we want to do data geo replication between us east and us
west, we will need to build *one* (super) RADOS cluster which cross us east and
west, and only deploy two different radosgw instances. Is my understanding
correct here?
You can do that but it is not recommended , I think doc says it would be
very good if you have two clusters with different radosgw servers.
https://ceph.com/docs/master/radosgw/federated-config/#background
1. You may deploy a single Ceph Storage Cluster with a federated
architecture if you have low latency network connections (*this isn’t
recommended*).
2. You may also deploy one Ceph Storage Cluster per region with a
separate set of pools for each zone *(**typical)*.
3. You may also deploy a separate Ceph Storage Cluster for each zone if
your requirements and resources warrant this level of redundancy.
Regards,
Vikhyat
If that is the case, is there any reason preventing us to deploy two completed
isolated clusters (not only rgw, but only mon and osd) and replicate data
between them?
[1]
https://ceph.com/docs/master/radosgw/federated-config/#multi-site-data-replication
Thanks,
Guang
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