ok, You give me the answer, thanks a lot. But, I don't know the answer to your questions. Maybe someone else can answer. ------------------ Original ------------------ From: "Loris Cuoghi";<lc@xxxxxxxxxxxxxxxxx>; Date: Tue, Dec 22, 2015 07:31 PM To: "ceph-users"<ceph-users@xxxxxxxxxxxxxx>; Subject: Re: ceph journal failed£¿ Le 22/12/2015 09:42, yuyang a ¨¦crit : > Hello, everyone, [snip snap] Hi > If the SSD failed or down, can the OSD work? > Is the osd down or only can be read? If you don't have a journal anymore, the OSD has already quit, as it can't continue writing, nor it can assure data consistency, since writes have probably been interrupted. The Ceph's community general assumption for a dead journal, is a dead OSD. But. http://www.sebastien-han.fr/blog/2014/11/27/ceph-recover-osds-after-ssd-journal-failure/ How does this apply in reality? Is the solution that S¨¦bastien is proposing viable? In most/all cases? Will the OSD continue chugging along after this kind of surgery? Is it necessary/suggested to deep scrub ASAP the OSD's placement groups? _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com <br></ceph-users@xxxxxxxxxxxxxx></lc@xxxxxxxxxxxxxxxxx> _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com