On Tue, Feb 27, 2018 at 6:37 PM, Andre Goree <andre@xxxxxxxxxx> wrote: > Is it still considered best practice to set 'noout' for OSDs that will be > going under maintenance, e.g., rebooting an OSD ndoe for a kernel update? > > I ask, because I've set this twice now during times which the OSDs would > only momentarily be 'out', however each time I've done this, the OSDs have > become unusable and I've had to rebuild them. Can you be more specific about "unusable"? Marking an OSD noout is of course not meant to harm it! John > Also, when I _do not_ set 'noout', it would seem that once the node reboots > the OSDs come back online without issue _and_ there is very _little_ > recovery i/o -- I'd expect to see lots of recovery i/o if a node goes down > as the cluster tries to replace the PGs on other OSD nodes. This further > makes me believe that setting 'noout' is no longer necessary. > > I'm running version 12.2.2-12.2.4 (in the middle of upgrading). > > Thanks in advance. > > -- > Andre Goree > -=-=-=-=-=- > Email - andre at drenet.net > Website - http://blog.drenet.net > PGP key - http://www.drenet.net/pubkey.html > -=-=-=-=-=- > _______________________________________________ > 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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