On the linux machine :
1)Find out the iscsi name of the host:
cat /etc/iscsi/initiatorname.iscsi
note:in RHEL install "yum install iscsi-initiator-utils" if initiatorname.iscsi not found
2)discover the target storage array using iscsi target IP:
iscsiadm -m discovery -t st -p <target IP>
this output will be having iqn number about the storage target
3)make an iscsi I-T session on the host:
iscsiadm -m node -T <IQN of target> -p <target IP> --login
4)verify the IT connection session by:
iscsiadm -m session
5)present a LUN from array and export to the host using IQN of the host
6)After LUN presented do a rescan of iscsi device by:
rescan-scsi-bus.sh
7)Create a new file sytstem on the new device and mount
mkfs /dev/sdb
mkdir /mount1
mount /dev/sdb /mount1