5 Sep
2025
5 Sep
'25
3:42 p.m.
Migrating DB volume using ceph-bluestore-tool was a wrong step.
What's the alternative? Redeploying an entire cluster of spinners doesn't seem very feasible.
It doesn't setup LV tags for underlying volumes which prevents preper OSD devices detection after reboot.
One should set these tags manually using lvchange --addtag command. To a major degree DB tags are similar to ones for the block device. But some additional tuning is still required.
Unfortunately AFAIK there is no full how-to-do manual available. One of Eugene's link covers the topic just partly. So you should rather use existing valid OSD deployment as a reference.
Seems like justification for a tracker bug.