iSCSI SAN Components
iSCSI SANs components are largely analogous to FC SAN components. These components are as follows:
iSCSI Client/Host
The iSCSI client or host (also known as the iSCSI initiator) is a system, such as a server, which attaches to an IP network and initiates requests and receives responses from an iSCSI target. Each iSCSI host is identified by a unique iSCSI qualified name (IQN), analogous to a Fibre Channel world wide name (WWN).
To transport block (SCSI) commands over the IP network, an iSCSI driver must be installed on the iSCSI host. An iSCSI driver is included with the Microsoft iSCSI initiator.