Ceph » ceph-volume

When for some reason want to exclude/ignore a disk temporarily, you currently need to mount it in order for ceph-volume to mark it as "unavailable".

This becomes especially handy when dealing with drivegroups.

One possible solution is to use lvtags, just like we already do for other information. We may add a tag 'blacklist|ignore|exclude' that defaults to false
and can be changed through c-v itself.

ceph-volume lvm (in|ex)clude /dev/sdx

Which also adds a entry to the "rejected reason" field (see https://tracker.ceph.com/issues/44750)