The iSCSI Initiator or client on RHEL 7 is installed with the iscsi-initiator-utils package; you can verify that this is installed on your system using the yum command, as shown in the following example:

$ yum list iscsi-initiator-utils

If it's listed as Installed, all well and good, but if it's listed as Available, you will need to install it.

For the purpose of this exercise, we will use a separate RHEL 7 system as our initiator and connect it to the existing target. We will need to edit the /etc/iscsi/initiatorname.iscsi file on the new RHEL 7 system to ensure that the name is set to match the name we added to the ACL in the earlier section of this chapter; we can display this using the cat command, as shown in the following screenshot:

We will use the main client tool: iscsiadm. This was installed with the previously mentioned package. To discover iSCSI LUNS on the target, we will use the following command:

$ sudo iscsiadm --mode discovery --type sendtargets...