Hi Eugen, It is still failing with exactly the same error, which seems to indicate it cannot find a Logical Volume for osd.10. > If you want to migrate the db to a new device, you need to specify an existing VG and LV, in this case it is not created for you. I had actually already done that with the vgcreate and lvcreate commands. Here the exact commands I did: vgcreate cephdb03 /dev/nvme5n1 lvcreate -L 232G -n ceph-osd-db1 lvcreate -L 232G -n ceph-osd-db2 lvcreate -L 232G -n ceph-osd-db3 lvcreate -L 232G -n ceph-osd-db4 So I did already have the LVM volumes created. > And I'm not really sure why you run 'ceph-volume lvm activate --all --no-systemd', that's not necessary That is what was in the article I linked in my first post: ' https://docs.clyso.com/blog/ceph-volume-create-wal-db-on-separate-device-for-existing-osd/' I followed the rest of your steps exactly:
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