Indeed, thanks! Sébastien, care to update your helpful blog post? On Mar 27, 2013, at 10:04 AM, Gregory Farnum <greg@xxxxxxxxxxx> wrote: > 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
 |