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> 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> 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 > >> 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