Hi, I've asked the exact same question a few days ago, same answer: http://lists.ceph.com/pipermail/ceph-users-ceph.com/2017-October/021708.html I guess we'll have to bite the bullet on this one and take this into account when designing. Kind regards, Caspar 2017-10-25 10:39 GMT+02:00 koukou73gr <koukou73gr@xxxxxxxxx>: > On 2017-10-25 11:21, Wido den Hollander wrote: >> >>> Op 25 oktober 2017 om 5:58 schreef Christian Sarrasin <c.nntp@xxxxxxxxxxxxxxxxxx>: >>> >>> The one thing I'm still wondering about is failure domains. With >>> Filestore and SSD-backed journals, an SSD failure would kill writes but >>> OSDs were otherwise still whole. Replacing the failed SSD quickly would >>> get you back on your feet with relatively little data movement. >>> >> >> Not true. If you loose your OSD's journal with FileStore without a clean shutdown of the OSD you loose the OSD. You'd have to rebalance the complete OSD. > > Could you crosscheck please? Because this > http://ceph.com/geen-categorie/ceph-recover-osds-after-ssd-journal-failure/ > suggests otherwise. > > -K. > _______________________________________________ > 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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