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
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