A handy little script to output which Ceph OSD it mapped to which drive serial number:
#!/bin/bash
DISKS=`ceph-disk list | grep "ceph data"`
old_IFS=$IFS
IFS=$'n'
#echo $DISKS
for DISK in $DISKS; do
DEV=`awk '{print $1}' <<< $DISK`
OSD=`awk '{print $7}' <<< $DISK`
DEV=`echo $DEV | sed -e 's//dev///g'`
ID=`ls -l /dev/disk/by-id | grep $DEV | awk '{print $9}' | egrep -v "wwn"`
echo $OSD $ID
done
IFS=$old_IFS