$ sudo fdisk -l
Disk /dev/sda: 5368 MB, 5368709120 bytes
149 heads, 8 sectors/track, 8796 cylinders, total 10485760 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000e9ffa
Device Boot Start End Blocks Id System
/dev/sda1 2048 10483711 5240832 fd Linux raid autodetect
Disk /dev/sdb: 16.1 GB, 16106127360 bytes
255 heads, 63 sectors/track, 1958 cylinders, total 31457280 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0000e88d
Device Boot Start End Blocks Id System
/dev/sdb1 * 2048 194559 96256 fd Linux raid autodetect
/dev/sdb2 194560 31455231 15630336 fd Linux raid autodetect
Disk /dev/sdc: 16.1 GB, 16106127360 bytes
255 heads, 63 sectors/track, 1958 cylinders, total 31457280 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00029818
Device Boot Start End Blocks Id System
/dev/sdc1 * 2048 194559 96256 fd Linux raid autodetect
/dev/sdc2 194560 31455231 15630336 fd Linux raid autodetect
Disk /dev/sdd: 16.1 GB, 16106127360 bytes
255 heads, 63 sectors/track, 1958 cylinders, total 31457280 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0003a33e
Device Boot Start End Blocks Id System
/dev/sdd1 * 2048 194559 96256 fd Linux raid autodetect
/dev/sdd2 194560 31455231 15630336 fd Linux raid autodetect
Disk /dev/sde: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders, total 41943040 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000569b9
Device Boot Start End Blocks Id System
/dev/sde1 * 2048 194559 96256 fd Linux raid autodetect
/dev/sde2 194560 31455231 15630336 fd Linux raid autodetect
/dev/sde3 31455232 41940991 5242880 fd Linux raid autodetect
Disk /dev/sdf: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders, total 41943040 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00068f92
Device Boot Start End Blocks Id System
/dev/sdf1 * 2048 194559 96256 fd Linux raid autodetect
/dev/sdf2 194560 31455231 15630336 fd Linux raid autodetect
/dev/sdf3 31455232 41940991 5242880 fd Linux raid autodetect