I guess the question really is whether we want to support use of bcache devices for OSD's - the alternative is to not use the whole of the underlying SSD for bcache, reserving part of it for use by ceph as a journal device for underlying SATA or SAS spindles.
I guess the question really is whether we want to support use of bcache devices for OSD's - the alternative is to not use the whole of the underlying SSD for bcache, reserving part of it for use by ceph as a journal device for underlying SATA or SAS spindles.