Turning on your first iSCSI target is great, but so far you aren't using that storage for anything. Let's take it a step further and connect a server to that storage so that it can start to be used. The device connecting to an iSCSI target is called an iSCSI initiator. We are going to take a file server in our environment and configure it to connect over the network using iSCSI to our target server. When finished, we will have a new hard disk "attached" to our server, even though it is really just block storage from the iSCSI target that is being accessed via the network.
We have already configured one Windows Server 2012 R2 to be an iSCSI target, and are now configuring a second 2012 R2 box as our iSCSI initiator that will be connecting to the target.