If we change the current (or failed journal path) to one the existing journal and restart all failed/stop OSD. Is the above will work? (not tested, assuming only) Thanks Swami On Mon, Jan 25, 2016 at 9:18 PM, Loris Cuoghi <lc@xxxxxxxxxxxxxxxxx> wrote: > Le 25/01/2016 15:28, Mihai Gheorghe a écrit : >> >> As far as i know you will not lose data, but it will be unaccessable >> untill you bring the journal back online. > > > http://www.sebastien-han.fr/blog/2014/11/27/ceph-recover-osds-after-ssd-journal-failure/ > > After this, we should be able to restart the OSDs and wait for recovery. > > Never done this, anyone has experience to share? > >> >> 2016-01-25 16:23 GMT+02:00 Daniel Schwager <Daniel.Schwager@xxxxxxxx >> <mailto:Daniel.Schwager@xxxxxxxx>>: >> >> Hi, >> > ok...OSD stop. Any reason why OSD stop ( I assume if journal disk >> > fails, OSD should work as no journal. Isn't it?) >> >> No. In my understanding - if a journal fails, all the attached (to >> this Journal HDD) OSD's fails also. >> >> E.g. if you have 4 OSD's with the 4 journals's located on one >> SSD-hard disk, the failure of this SSD >> will crash/fail also your 4 OSD's. >> >> regards >> Danny >> >> >> > >> > Not understand, why the OSD data lost. You mean - data lost >> during the >> > traction time? or total OSD data lost? >> > >> > Thanks >> > Swami >> > >> > On Mon, Jan 25, 2016 at 7:06 PM, Jan Schermer <jan@xxxxxxxxxxx >> <mailto:jan@xxxxxxxxxxx>> wrote: >> > > OSD stops. >> > > And you pretty much lose all data on the OSD if you lose the >> journal. >> > > >> > > Jan >> > > >> > >> On 25 Jan 2016, at 14:04, M Ranga Swami Reddy >> <swamireddy@xxxxxxxxx <mailto:swamireddy@xxxxxxxxx>> wrote: >> > >> >> > >> Hello, >> > >> >> > >> If a journal disk fails (with crash or power failure, etc), what >> > >> happens on OSD operations? >> > >> >> > >> PS: Assume that journal and OSD is on a separate drive. >> > >> >> > >> Thanks >> > >> Swami >> > >> _______________________________________________ >> > >> ceph-users mailing list >> > >> ceph-users@xxxxxxxxxxxxxx <mailto:ceph-users@xxxxxxxxxxxxxx> >> > >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> > > >> > _______________________________________________ >> > ceph-users mailing list >> > ceph-users@xxxxxxxxxxxxxx <mailto:ceph-users@xxxxxxxxxxxxxx> >> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> _______________________________________________ >> ceph-users mailing list >> ceph-users@xxxxxxxxxxxxxx <mailto: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 _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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