If it can help, I have recently updated my ceph cluster (composed by 3 mon-mgr nodes and n osd nodes) from Nautilus CentOS7 to Pacific Centos8 stream. First I reinstalled the mon-mgr nodes with Centos8 stream (removing them from the cluster and then re-adding them with the new operating system). This was needed because the mgr on octopus runs only on rhel8 and its forks Then I migrated the cluster to Octopus (so mon-mgr running C8stream and osd nodes running centos7) Then I reinstalled each OSD node with Centos8 Stream, without draining the node [*] Then I migrated the cluster from Octopus to Pacific [*] ceph osd set noout Reinstallation of the node with the C8stream Installation of ceph ceph-volume lvm activate --all Cheers, Massimo On Tue, Dec 6, 2022 at 3:58 PM David C <dcsysengineer@xxxxxxxxx> wrote: > Hi All > > I'm planning to upgrade a Luminous 12.2.10 cluster to Pacific 16.2.10, > cluster is primarily used for CephFS, mix of Filestore and Bluestore > OSDs, mons/osds collocated, running on CentOS 7 nodes > > My proposed upgrade path is: Upgrade to Nautilus 14.2.22 -> Upgrade to > EL8 on the nodes (probably Rocky) -> Upgrade to Pacific > > I assume the cleanest way to update the node OS would be to drain the > node and remove from the cluster, install Rocky 8, add back to cluster > as effectively a new node > > I have a relatively short maintenance window and was hoping to speed > up OS upgrade with the following approach on each node: > > - back up ceph config/systemd files etc. > - set noout etc. > - deploy Rocky 8, being careful not to touch OSD block devices > - install Nautilus binaries (ensuring I use same version as pre OS upgrade) > - copy ceph config back over > > In theory I could then start up the daemons and they wouldn't care > that we're now running on a different OS > > Does anyone see any issues with that approach? I plan to test on a dev > cluster anyway but would be grateful for any thoughts > > Thanks, > David > _______________________________________________ > 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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