[ceph-users] Re: laggy OSDs and staling krbd IO after upgrade from nautilus to octopus

2022-10-15 Thread Frank Schilder
Hi all, I can now add another data point as well. We upgraded our production cluster from mimic to octopus with the procedure of - set quick-fix-on-start=false in all ceph.conf files and the mon config store - set nosnaptrim - upgrade all daemons - set require-osd-release=octopus - host by

[ceph-users] Re: strange OSD status when rebooting one server

2022-10-15 Thread Frank Schilder
Hosts buckets with no disks don't hurt, but they do influence the crush map. To avoid unnecessary data movement, you might want to change your server replacement method. Since mimic, instead of purging OSDs, you can destroy OSDs, which is the same as purge but keeps the ID intact. This way, you