4.3. SAN Topologies
For the development of SAN topologies, we won’t show the workstations or the LAN in the illustrations.
4.3.1. Working Up to a SAN
Let’s begin with a fundamental Fibre Channel connection.
Figure 4-2. A Simple Point-to-point Connection
This is a simple point-to-point connection, with one server and one disk array. Now a point-to-point connection isn’t much to write home about. It is not quite a SAN, but it is a useful server/storage connection.
Our connection is fast, and more convenient to cable than a SCSI connection, but it isn’t very reliable. The single points of failure are: server, FC HBA, cable, disk array controller. ...