This should actually be "down", not "out". Out will trigger a data migration. :) -Greg Software Engineer #42 @ http://inktank.com | http://ceph.com On Wed, Mar 27, 2013 at 8:36 AM, John Nielsen <lists@xxxxxxxxxxxx> wrote: > Sébastien Han actually covers this on his blog: > > http://www.sebastien-han.fr/blog/2012/08/17/ceph-storage-node-maintenance/ > > His use case is moving from an embedded journal to one on an SSD but the steps can be used to move/recreate the journal for any reason: > Mark the OSD "out" > Stop the OSD daemon > Run "ceph-osd -i N --flush-journal", replacing N with the ID of the OSD > Get your new journal location ready if it isn't > Update ceph.conf with the new journal settings > Run "ceph-osd -i N --mkjournal", again replacing N with the ID of the OSD > Start the OSD daemon > Mark the OSD "in" > > I used the procedure above to migrate 16 OSD's on 4 hosts from file-based journals to partition-based with no downtime or data loss. (Just be aware of your crush rules and only have one OSD, host, etc. down at a time.) > > JN > > On Mar 27, 2013, at 7:03 AM, Aleksey Samarin <nrg3tik@xxxxxxxxx> wrote: > >> Well, after few tests, i can't increase size of journal. I think size of journal set only when osd create. So for change journal size u need to delete osd and create with new journal. >> >> >> 2013/3/26 Chen, Xiaoxi <xiaoxi.chen@xxxxxxxxx> >> Are you using a partition as journal? >> >> >> >> From: ceph-users-bounces@xxxxxxxxxxxxxx [mailto:ceph-users-bounces@xxxxxxxxxxxxxx] On Behalf Of Aleksey Samarin >> Sent: 2013年3月26日 20:45 >> To: ceph-users@xxxxxxxx >> Subject: Journal size >> >> >> >> Hello everyone! >> >> I have question about journal. Ceph cluster is already working with 1gb journal per osd. I wanna to increase size of journal, is this possible? >> If yes, how i can do this? >> >> All the best, Alex! >> >> >> _______________________________________________ >> ceph-users mailing list >> ceph-users@xxxxxxxxxxxxxx >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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