Thanks for answer. If I understand right, currently there is no work on DR with 2 or more Openstack clouds. Is it maybe planned for the future? Kemo
On Mon, Jan 9, 2017 at 7:50 AM, joehuang <joehu...@huawei.com> wrote: > Hello, > > Thank you for the mail, please see inline comments: > > Best Regards > Chaoyi Huang (joehuang) > ------------------------------ > *From:* opnfv-tech-discuss-boun...@lists.opnfv.org [ > opnfv-tech-discuss-boun...@lists.opnfv.org] on behalf of Klemen Pogacnik [ > kle...@psi-net.si] > *Sent:* 06 January 2017 22:05 > *To:* opnfv-tech-discuss@lists.opnfv.org > *Subject:* [opnfv-tech-discuss] [multisite] Multisite VNF Geo site > disaster recovery > > I'm trying to deploy Multisite VNF Geo site disaster recovery scenario > with Ceph as a backend for a Cinder service (scenario 3, 3rd way) . Ceph > rbd mirroring is used for data replication between two sites. Volume > created on site1 is replicated to site2, but this volume is not visible on > Cinder on side2. Probably some metadata from Cinder DB must be replicated > too. Has anybody been thinkink or even working on that? > > ---> yes, current replication implementation will hide all these > information from the API level, and the replication fail-over, fail-back > are activities inside one OpenStack domain. you have to replicate the db to > the site2 if you want to do DR with different OpenStack cloud. We had > discussed with the community, whether it's reasonable to expose the volume > reference from the admin API, community prefer to let the driver to deal > with these information. > > > The second question is, how to make switchover, when site one goes down. > On open stack there is cinder failover-host command, which is, as I can > understand, only useful for configuration with one openstack and two ceph > clusters. Any idea how to make switchover with two openstacks each > connected to its own ceph cluster. > Thanks a lot for help! > > ---> This needs to be triggered by GR software, or manually, or via DNS(if > applicable). > > Kemo > > > > >
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