NAME                        MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
loop0                         7:0    0    1T  0 loop 
└─ceph--instance--osd0-data 253:0    0 1024G  0 lvm  
loop1                         7:1    0    1T  0 loop 
└─ceph--instance--osd1-data 253:1    0 1024G  0 lvm  
loop2                         7:2    0    1T  0 loop 
└─ceph--instance--osd2-data 253:2    0 1024G  0 lvm  
sr0                          11:0    1  482K  0 rom  
vda                         252:0    0   40G  0 disk 
└─vda1                      252:1    0   40G  0 part /