Chapter 6. OSD removal tool

Procedure

1. Identify the OSD that needs to be removed. The OSD that needs removal is in CrashLoopBackOff or Error state.

   $ oc get -n openshift-storage pods -l app=rook-ceph-osd -o wide

   Example output:

   rook-ceph-osd-0-6d77d6c7c6-m8xj6    0/1    CrashLoopBackOff    0    24h   10.129.0.16   compute-2   <none>           <none>

2. Run the following command to remove OSD 0:

   $ odf purge-osd 0

3. [Optional] If removal of the OSD affects placement group (PG) status, enter yes-force-destroy-osd.
4. Verify that the last line of the command output contains cephosd: completed removal of OSD 0.

5. Verify the corresponding deployment is removed:

   $ oc get deployment rook-ceph-osd-0