Ceph » mgr

$ ceph device ls
DEVICE                                                                      HOST:DEV            DAEMONS             LIFE EXPECTANCY 
...
OCZ-VERTEX460A_A22MQ061448000601                                            node1:sda           osd.1 osd.2                         
LVM_PV_iXdUC7-YkmA-f9gB-vGGZ-ftan-RTJo-QnaIfH_on_/dev/sdb_18351E45D011      node1:sdb           osd.10                              
LVM_PV_GPoP3B-YBVF-vrVi-Yjjh-0dIo-pZKn-EKDE05_on_/dev/sdc_WMC6N0E7A7HZ      node1:sdc           osd.1                               
WDC_WD1003FBYX-01Y7B0_WD-WCAW31911438                                       node1:sdd           osd.2                               
...

# lsblk
NAME               MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda                  8:0    0 111,8G  0 disk 
├─sda1               8:1    0   256M  0 part 
├─sda2               8:2    0     1M  0 part 
└─sda3               8:3    0 111,6G  0 part 
  ├─node1-ubu      253:0    0     4G  0 lvm  /
  ├─node1-swap     253:1    0   3,7G  0 lvm  
  ├─node1-jd       253:4    0     5G  0 lvm  
  └─node1-jc       253:6    0     5G  0 lvm  
sdb                  8:16   0 894,3G  0 disk 
├─n1_micron_b-test 253:3    0    10G  0 lvm  
└─n1_micron_b-data 253:5    0 884,3G  0 lvm  
sdc                  8:32   0   1,8T  0 disk 
└─n1_blue_c-data   253:7    0   1,8T  0 lvm  
sdd                  8:48   0 931,5G  0 disk 
└─node1-d_data     253:2    0 931,5G  0 lvm  

Actually all these devices are used only through LVM. For some unknown reason their identifiers sometimes look like 'LVM_PV_....' and sometimes as normal ID built from vendor/model/serial. I think this could happen because the same disk can be identified in different ways, and ceph choose random from them.