I have three virtual servers with OSD daemons. Each OSD located on 300GB LVM partition. What should I do when VM disk will be increased to 500GB? Stop osd daemon service->increase lvm volume->start osd daemon service? Or will the procedure be more complicated?
You'll need to use ceph-bluestore-tool
ceph-bluestore-tool bluefs-bdev-expand –path <osd path>
while the OSD is offline to increase the block device underneath the OSD. Do this only for one OSD at a time.
Default <osd path> is /var/lib/ceph/osd/ceph-12345/