[ceph-users] OSDs will not start

Good day all, I've an issue with a few OSDs (in two different nodes) that attempt to start but fail / crash quite quickly. They are all LVM disks. I've tried upgrading software, health checks on the hardware (nodes and disks) and there doesn't seem to be any issues there. Recently I've had a few "other" disks physically fail in the cluster and now have one PG down which is blocking some IO on CephFS. I've added the output of the osd journalctl and the osd log below in case it's helpful to identify anything obvious. I also set debug bluefs = 20 , saw this in another post. I recently manually upgraded this node to (17.2.0) before the problem began, later to (17.2.5). - The other osds in this node start / run fine. The other node (15.2.17) also has a few osds that will not start and some that run without issue. Could anyone point me in the right direction to investigate and solve my osd issues. https://pastebin.com/3PkCabdf https://pastebin.com/BT9bnhSb Production system mainly used for CephFS OS: Ubuntu 20.04.5 LTS Ceph versions: 15.2.17 - Octopus (one OSD node manually upgraded to 17.2.5 - Quincy) Erasure data pool (K=4, M=2) - The journal's for each osd are co-located on each drive Kind regards Geoffrey Rhodes