iscsi-initiator-utils

start:

/etc/init.d/iscsi start

discovery lun

iscsiadm -m discovery -t sendtargets -p 192.168.5.122

192.168.5.122 is lun's ip

/etc/init.d/iscsi restart

connect to the lun 192.168.5.122,  there is a new disk , sdd( use fdisk -l to show)

Format & mount

fdisk /dev/sdd

mke2fs -j -m 0 -O dir_index /dev/sdd1

mkdir /mnt/iscsi

mount /dev/sdd1 /mnt/iscsi