"In general, there are two types of SANs: iSCSI-based
and Fibre Channel-based. A Fibre Channel SAN requires costly
hardware and therefore is not an ideal option for building an
affordable open source SAN. In this configuration, we'll use iSCSI.
In a typical iSCSI configuration, the iSCSI target is the service
provided by a SAN. This iSCSI target provides iSCSI access to a
shared device."
