Ubuntu server auto mount iSCSi storage

Install Open-iSCSI initiator

apt-get install open-iscsi

configuration file could be located at /etc/iscsi/iscsid.conf or ~/.iscsid.conf.

node.startup = automatic
node.session.auth.username = MY-ISCSI-USER
node.session.auth.password = MY-ISCSI-PASSWORD
discovery.sendtargets.auth.username = MY-ISCSI-USER
discovery.sendtargets.auth.password = MY-ISCSI-PASSWORD

Discover iSCSi Target

iscsiadm -m discovery -t sendtargets -p 172.31.1.150

Login to target

iscsiadm --mode node --targetname iqn.1992-04.com.emc:cx.fcnma082600013.a0 --portal 172.31.1.150 --login

Note: remember login to your iSCSi server (SAN) then allow your server connection
Make sure you auto connect to iSCSi server target when server start up

vi /etc/iscsi/nodes/iqn.1992-04.com.emc\:cx.fcnma082600013.b1/172.31.2.151\,3260\,3/default

node.startup = automatic

Restart service

/etc/init.d/open-iscsi restart

Format and mount the iSCSi volume

dmesg or fdisk -l, or look at /var/log/messages to find new devices

You can use LVM or partition your disk now

fdisk /dev/sde

Format a partition ext4 or xfs or brtfs

mkfs.ext4 /dev/sde1

Mount file system

mkdir /backupdata
mount /dev/sde1 /backupdata

Add mount point to /etc/fstab 

/dev/sde1  /backupdata ext4 defaults 0 0