четверг, 27 июня 2013 г. пользователь писал:
Hi,
yes exactly. synchronous replication is OK. The distance between the datacenter
is only 15 km.
How do i configure this in the cruchmap?
Best regards
Joachim
Von: Sage Weil <sage@xxxxxxxxxxx>
An: Joachim.Tork@xxxxxx,
Kopie: ceph-users@xxxxxxxxxxxxxx
Datum: 25.06.2013 17:39
Betreff: Re: Replication between 2 datacenter
On Tue, 25 Jun 2013, Joachim.Tork@xxxxxx wrote:
> hi folks,
>
> i have a question concerning data replication using the crushmap.
>
> Is it possible to write a crushmap to achive a 2 times 2 replcation in the
> way a have a pool replication in one data center and an overall replication
> of this in the backup datacenter?
Do you mean 2 replicas in datacenter A, and 2 more replicas in datacenter
B?
Short answer: yes, but replication is synchronous, so it will generally
only work well if the latency is low between the two sites.
sage
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