I started with Octopus. It had one very serious flaw that I only fixed by having Ceph self-upgrade to Pacific. Octopus required perfect health to alter daemons and often the health problems were themselves issues with daemons. Pacific can overlook most of those problems, so it's a lot easier to repair stuff. Nautilus is also the highest level supported natively by CentOS 7 (I went with Octopus because I mis-read that). I can attest that a Ceph FS mount under the Nautilus packages to Octopus and Pacific seem to work just find, incidentally. I can't use Ansible myself, because my hardware distribution is too irregular, so I'm doing everything from Ceph commands. If you are currently running on Ceph as installed services rather than containerized, I should also note that apparently the version of Docker for CentOS7 (which I'll take as a rough equivalent to what you've got) cannot properly run the Ceph containers. AlmaLinux 8, however has no problems. Since I've yet to migrate most of my hosts off CentOS 7, I run most of Ceph in VMs running AlmaLinux 8. The OSD storage I mount as raw disks to avoid the extra layer that virtualizing them would entail. The raw disks are themselves LVM logical volumes as I don't have dedicated physical drives. It's a work in progress, and a messy one. I don't know if you can do incremental migration with mixed Nautilus/Pacific OSDs, if Nautilus supports Ceph's internal upgrade (Octopus does), or if it's best to just crank up a fresh Ceph and migrate the data via something like rsync (which I did, since I was moving from glusterfs to Ceph). Maybe someone with more knowledge of the internals can answer these questions. Tim On Tue, 2023-10-17 at 20:18 -0400, Dave Hall wrote: > Hello, > > I have a Nautilus cluster built using Ceph packages from Debian 10 > Backports, deployed with Ceph-Ansible. > > I see that Debian does not offer Ceph 15/Octopus packages. However, > download.ceph.com does offer such packages. > > Question: Is it a safe upgrade to install the download.ceph.com > packages > over top of the buster-backports packages? > > If so, the next question is how to deploy this? Should I pull down > an > appropriate version of Ceph-Ansible and use the rolling-upgrade > playbook? > Or just apg-get -f dist-upgrade the new Ceph packages into place? > > BTW, in the long run I'll probably want to get to container-based > Reef, but > I need to keep a stable cluster throughout. > > Any advice or reassurance much appreciated. > > Thanks. > > -Dave > > -- > Dave Hall > Binghamton University > kdhall@xxxxxxxxxxxxxx > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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