Ways of searching a disk/hdd in RHEL6
There must be an entry in /sys/block/XXX # ls -lrt /sys/block/ /proc/partitions ==> cat /proc/partitions major minor #blocks name 8 0 15728640 sda 8 1 512000 sda1 8 2 15215616 sda2 8 16 2097152 sdb 253 0 13148160 dm-0 253 1 2064384 dm-1 To list all the disk in the machine ==> fdisk -l # fdisk -l /dev/?d? To avoid all the dm devices. # fdisk -l 2>/dev/null | grep "Disk \/" Disk /dev/sda: 16.1 GB, 16106127360 bytes Disk /dev/sdb: 2147 MB, 2147483648 bytes Disk /dev/mapper/VolGroup-lv_root: 13.5 GB, 13463715840 bytes Disk /dev/mapper/VolGroup-lv_swap: 2113 MB, 2113929216 bytes # lsblk NAME ...