Hello, Olivier!

  Try to check recent ML thread titled "Changing replica size of a running
pool". David Turner described the ways to utilize 2 nodes cluster with some
kind of redundancy.

Best regards,
Vladimir

2017-05-06 16:55 GMT+05:00 Olivier Roch <olivierrochvil...@yahoo.com>:

> Hi all,
>
>
>
>
> I have a 3 nodes CEPH cluster, each node with 4 OSD and 1 monitor and
> replication across hosts defined in the crushmap. 2 pools (1 size=3,
> min-size=2 , 1 size=2 min-size 2)
>
> One of the nodes failed (hardware failure) so I removed it from the crush
> map and  change replication from host to osd.
>
> After reconstruction cluster health is ok now (with a warning for the
> monitor down)
>
>
> While I managed to restore the 3rd node is there a way to cover a 2nd node
> failure, leaving just 1 node in the cluster (disk space used does not
> exceed 1 node capacity).
>
> I assume i will have to set up an external monitor, but what else ?
>
>
> Olivier
>
>
>
>
> _______________________________________________
> ceph-users mailing list
> ceph-users@lists.ceph.com
> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>
>


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