iSCSI is an acronym for Internet SCSI (Small Computer System Interface), an Internet Protocol (IP)-based storage networking standard for linking data storage subsystems. By carrying SCSI commands over IP networks, the iSCSI protocol enables you to access block devices from across the network as if they were connected to the local system.
This feature means that a Solaris system can act as either an iSCSI server (target) or a client (initiator). The advantage of setting up Solaris iSCSI targets is you might have existing fibre-channel devices that can be connected to clients without additional FC HBAs. In addition, systems with dedicated arrays can now share replicated storage with ZFS or UFS file systems.
For more information, see Chapter 4, Configuring Solaris iSCSI Initiators.