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
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