Actually, I already have recovered OSDs and MON daemon back to the cluster
according to http://ceph.com/docs/master/rados/operations/add-or-rm-osds/and
http://ceph.com/docs/master/rados/operations/add-or-rm-mons/ .

But doc has missed info about removing/add MDS.
How I can recovery MDS daemon for failed node?


On Wed, Mar 20, 2013 at 3:23 PM, Dave (Bob) <[email protected]> wrote:

> Igor,
>
> I am sure that I'm right in saying that you just have to create a new
> filesystem (btrfs?) on the new block device, mount it, and then
> initialise the osd with:
>
> ceph-osd -i <the osd number> --mkfs
>
> Then you can start the osd with:
>
> ceph-osd -i <the osd number>
>
> Since you are replacing an osd that already existed, the cluster knows
> about it, and there is a key for it that is known.
>
> I don't claim any great expertise, but this is what I've been doing, and
> the cluster seems to adopt the new osd and sort everything out.
>
> David
> _______________________________________________
> ceph-users mailing list
> [email protected]
> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>



-- 
Igor Laskovy
facebook.com/igor.laskovy
Kiev, Ukraine
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