Isn't noout enough to shutdown OSD ? Heard that some of those flags can cause some problems when you restart the cluster
https://www.croit.io/blog/how-not-to-shut-down-a-ceph-cluster ________________________________ De : Joshua Blanch <joshua.bla...@clyso.com> Envoyé : mercredi 6 août 2025 15:47:21 À : gagan tiwari Cc : Hand, Gerard; luk...@borek.org.pl; ceph-users Objet : [ceph-users] Re: [External] Best/Safest way to power off cluster for osds I would run it in this exact order to shut it down. ceph osd set noout ceph osd set norecover ceph osd set norebalance ceph osd set nobackfill ceph osd set nodown ceph osd set noscrub ceph osd set nodeep-scrub ceph osd set pause then to boot back up, run it in reverse order. On Wed, 6 Aug 2025 at 07:36, gagan tiwari <gagan.tiw...@mathisys-india.com> wrote: > Thanks Gerard / Lukasz / Eugen, > I will follow > these instructions white shutting nodes. > > Thanks, > Gagan > > > On Wed, Aug 6, 2025 at 7:19 PM Hand, Gerard <g.h...@lancaster.ac.uk> > wrote: > > > > > If you are using CephFS you will need to disable that first: > > > > ceph fs set <file system> max_mds 1 > > ceph fs fail <file system> > > ceph fs set <file system> joinable false > > > > > > Regards > > Gerard > > _______________________________________________ > > ceph-users mailing list -- ceph-users@ceph.io > > To unsubscribe send an email to ceph-users-le...@ceph.io > > > _______________________________________________ > ceph-users mailing list -- ceph-users@ceph.io > To unsubscribe send an email to ceph-users-le...@ceph.io > _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
