We are using 1tb hdd and ssd journal. We can create 10 osd with single ssd. We use gui only.
/dev/sdc1 ceph data, active, cluster ceph, osd.15, journal /dev/sdb1
/dev/sdd :
/dev/sdd1 ceph data, active, cluster ceph, osd.16, journal /dev/sdb2
/dev/sde :
/dev/sde1 ceph data, active, cluster...