Ceph Replacing OSD

Steps

• ceph osd out <OSD ID>

WAIT UNTIL PG =0 < Around 1hour?>

systemctl stop (ceph-cluster)@<OSD ID RELATED>

example: systemctl stop ceph-9124ada3513@osd.1

• ceph osd down <OSD ID>
• ceph osd crush remove <OSD ID>
• ceph osd rm <OSD ID>
• ceph auth del <OSD ID>
• Go To The following ceph osd node
• Cd /var/lib/ceph/<ceph cluster>
• Do > find * | grep <OSD ID>
• Remove everything related to the osd > rm -f -r <OSD ID RELATED>
• Make sure to do systemctl daemon-reload

Don’t forget to cleanup the disk from ceph

• gdisk /dev/<OSD DISK> INPUT = X Z Y Y

Adding the Disk

• ceph orch daemon add osd –method raw (ceph-host):/dev/<OSD RELATED PATH>

NOTE: If you encounter the following:

Osd(…) exists, already created?

You need to redo step 1-9, and then restart the docker of the ceph-host related

NOTE: You can also just remove the hard disk directly, and do the clean up with the following command, but there may be some steps to be skipped from the commands