root@root:~# parted -l
Model: ATA HGST HUS724020AL (scsi)
Disk /dev/sda: 2000GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Number Start End Size File system Name Flags
1 20.5kB 1049kB 1029kB primary bios_grub
2 2097kB 21.0GB 21.0GB ext4 primary raid
3 21.0GB 2000GB 1979GB ext4 primary raid
4 2000GB 2000GB 536MB linux-swap(v1) primary
Model: ATA HGST HUS724020AL (scsi)
Disk /dev/sdb: 2000GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Number Start End Size File system Name Flags
1 20.5kB 1049kB 1029kB primary bios_grub
2 2097kB 21.0GB 21.0GB ext4 primary raid
3 21.0GB 2000GB 1979GB ext4 primary raid
4 2000GB 2000GB 536MB linux-swap(v1) primary
Model: Linux Software RAID Array (md)
Disk /dev/md2: 21.0GB
Sector size (logical/physical): 512B/512B
Partition Table: loop
Number Start End Size File system Flags
1 0.00B 21.0GB 21.0GB ext4
Model: Linux Software RAID Array (md)
Disk /dev/md3: 1979GB
Sector size (logical/physical): 512B/512B
Partition Table: loop
Number Start End Size File system Flags
1 0.00B 1979GB 1979GB ext4
root@root:~#