Re: Migrating data from a Ceph clusters to another

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Hi Irek & Craig,

Sorry, I misunderstood "RBD mirroring". What I want to do is not like that.

I just want to move all the data from a cluster to another. It can be achieved by `rados -p <pool> get <object> <filename>` for all objects on cluster A, and then `rados -p <pool> put <object> <filename>` on cluster B. Is there any tool for that?

Best,
John Lin

Craig Chi <craigchi@xxxxxxxxxxxx> 於 2017年2月9日 週四 下午4:43寫道:
Hi,
 
Sorry I gave the wrong feature.
rbd mirroring method can only be used on rbd with "journaling" feature (not layering).
 
Sincerely,
Craig Chi
 
On 2017-02-09 16:41, Craig Chi <craigchi@xxxxxxxxxxxx> wrote:
Hi John,
 
rbd mirroring can configured by pool. http://docs.ceph.com/docs/master/rbd/rbd-mirroring/
However the rbd mirroring method can only be used on rbd with layering feature, it can not mirror objects other than rbd for you.
 
Sincerely,
Craig Chi
 
On 2017-02-09 16:24, Irek Fasikhov <malmyzh@xxxxxxxxx> wrote:
Hi.
I recommend using rbd import/export.

С уважением, Фасихов Ирек Нургаязович
Моб.: +79229045757

2017-02-09 11:13 GMT+03:00 林自均 <johnlinp@xxxxxxxxx>:
Hi,
 
I have 2 Ceph clusters, cluster A and cluster B. I want to move all the pools on A to B. The pool names don't conflict between clusters. I guess it's like RBD mirroring, except that it's pool mirroring. Is there any proper ways to do it?
 
Thanks for any suggestions.
 
Best,
John Lin

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