Here is a quick list of handy commands when configuring your iSCSI Initiators on Debian:

Install iSCSI Initiator on your system

# apt install -y open-iscsi

Find your Initiator IQN

# cat /etc/iscsi/initiatorname.iscsi
InitiatorName=iqn.1993-08.org.debian:01:6af387c68d

Discover targets on 10.0.0.44

iscsiadm -m discovery -t sendtargets -p 10.0.0.44
10.0.0.44:3260,1 iqn.1992-04.com.emc:cx.apm00240108337.a0

Confirm iSCSI status

iscsiadm -m node -o show

Login to target

iscsiadm -m node --login

Logout of target

iscsiadm -m node --logout

Confirm active session

# iscsiadm -m session -o show

Examine available partitions

# fdisk -l