[root@controllernode ~]# lsblk
NAME                                                                                       MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda                                                                                          8:0    0  2.9T  0 disk
├─sda1                                                                                       8:1    0  200M  0 part /boot/efi
├─sda2                                                                                       8:2    0  500M  0 part /boot
└─sda3                                                                                       8:3    0  2.9T  0 part
  ├─centos-root                                                                            253:0    0   50G  0 lvm  /
  ├─centos-swap                                                                            253:1    0    4G  0 lvm  [SWAP]
  └─centos-home                                                                            253:2    0  2.9T  0 lvm  /home
sdb                                                                                          8:16   0 30.6T  0 disk
sdc                                                                                          8:32   0  512M  1 disk
└─sdc1                                                                                       8:33   0  251M  1 part
loop0                                                                                        7:0    0  100G  0 loop
└─docker-253:0-84166717-pool                                                               253:3    0  100G  0 dm
  ├─docker-253:0-84166717-3075ae8cd9c267d2a4d243a4abef19f542970f1eee3be78fae77a37f0d6ca8f7 253:4    0   10G  0 dm
  ├─docker-253:0-84166717-db4f45fbdb6dc4c2e1aade9b576f20d283e5bfaea0819de83fe89dd1e55555d1 253:5    0   10G  0 dm
  ├─docker-253:0-84166717-74b42988fe3415c25c89dc1b790ffd34b6384e8031dd40467c924924c68961c6 253:6    0   10G  0 dm
  ├─docker-253:0-84166717-9ff86008caff22245c0e4fa2ba35c837d662d377b4c1d79c03aa3747adcfd7ca 253:7    0   10G  0 dm
  ├─docker-253:0-84166717-f015768dab55310cf98bcd3335345bc96b0d5e5c6e9050daaec4213bd562ac3f 253:8    0   10G  0 dm
  ├─docker-253:0-84166717-810d3506a4ef9e8c44a0d77d5d4ceca94f7e22d5798a8d479f12c73eddfb836e 253:9    0   10G  0 dm
  ├─docker-253:0-84166717-584a42b2b3dfeedabef4e5a98c64f672bdf9172422aeea2faf6438b1b255fcc6 253:10   0   10G  0 dm
  ├─docker-253:0-84166717-9148dc9e6da00a6c1da31ddd90f151db94947c9a3d0697a1d8062207cf00247a 253:11   0   10G  0 dm
  ├─docker-253:0-84166717-f1ef7dcc34d9b33e7b742dbb3e57170c3480010edb33fa559f888b8538622fe7 253:12   0   10G  0 dm
  ├─docker-253:0-84166717-ba52f0bc20c3e2a263f0b8ab9d275ed820f659d6a9758ac78bca9c5d45c586c5 253:13   0   10G  0 dm
  ├─docker-253:0-84166717-4ee0c5486b1562766f784ae5f3e43099fd62e2355f97c5ed54cf883d303f180c 253:14   0   10G  0 dm
  ├─docker-253:0-84166717-0fe8fcc12048daa071e703fefff38f48dee56164c128d918406f2368c0a06526 253:15   0   10G  0 dm
  ├─docker-253:0-84166717-995e18dba09d7fbd231519aa3abecd727fc283f5d5c0c4e0fce3cee832a48177 253:16   0   10G  0 dm
  └─docker-253:0-84166717-d91a9f7cc269d69073e8e3462c4c913615f74caecca4f0393723fce2e98f9daf 253:17   0   10G  0 dm
loop1                                                                                        7:1    0    2G  0 loop
└─docker-253:0-84166717-pool                                                               253:3    0  100G  0 dm
  ├─docker-253:0-84166717-3075ae8cd9c267d2a4d243a4abef19f542970f1eee3be78fae77a37f0d6ca8f7 253:4    0   10G  0 dm
  ├─docker-253:0-84166717-db4f45fbdb6dc4c2e1aade9b576f20d283e5bfaea0819de83fe89dd1e55555d1 253:5    0   10G  0 dm
  ├─docker-253:0-84166717-74b42988fe3415c25c89dc1b790ffd34b6384e8031dd40467c924924c68961c6 253:6    0   10G  0 dm
  ├─docker-253:0-84166717-9ff86008caff22245c0e4fa2ba35c837d662d377b4c1d79c03aa3747adcfd7ca 253:7    0   10G  0 dm
  ├─docker-253:0-84166717-f015768dab55310cf98bcd3335345bc96b0d5e5c6e9050daaec4213bd562ac3f 253:8    0   10G  0 dm
  ├─docker-253:0-84166717-810d3506a4ef9e8c44a0d77d5d4ceca94f7e22d5798a8d479f12c73eddfb836e 253:9    0   10G  0 dm
  ├─docker-253:0-84166717-584a42b2b3dfeedabef4e5a98c64f672bdf9172422aeea2faf6438b1b255fcc6 253:10   0   10G  0 dm
  ├─docker-253:0-84166717-9148dc9e6da00a6c1da31ddd90f151db94947c9a3d0697a1d8062207cf00247a 253:11   0   10G  0 dm
  ├─docker-253:0-84166717-f1ef7dcc34d9b33e7b742dbb3e57170c3480010edb33fa559f888b8538622fe7 253:12   0   10G  0 dm
  ├─docker-253:0-84166717-ba52f0bc20c3e2a263f0b8ab9d275ed820f659d6a9758ac78bca9c5d45c586c5 253:13   0   10G  0 dm
  ├─docker-253:0-84166717-4ee0c5486b1562766f784ae5f3e43099fd62e2355f97c5ed54cf883d303f180c 253:14   0   10G  0 dm
  ├─docker-253:0-84166717-0fe8fcc12048daa071e703fefff38f48dee56164c128d918406f2368c0a06526 253:15   0   10G  0 dm
  ├─docker-253:0-84166717-995e18dba09d7fbd231519aa3abecd727fc283f5d5c0c4e0fce3cee832a48177 253:16   0   10G  0 dm
  └─docker-253:0-84166717-d91a9f7cc269d69073e8e3462c4c913615f74caecca4f0393723fce2e98f9daf 253:17   0   10G  0 dm