Patches for cephadm managed Ceph installations
Specifically the patch for ceph-volume which allows usage of "removable" SAS devices, which many controllers utilize to indicate a hot-pluggable slot. You can find this @ ceph/ceph#49954 .
Please do not use this image verbatim! This works for me, and I trust my build of this, but I would advise you fork this and create your own package.