Fibre Channel is the protocol used for data transfer due to its high speed and provisions for high availability. It is essentially the classic SCSI protocol, mixed with an address-based networking system, so that multiple hosts can be online and request and send data to and from storage devices.
A speed of 2 Gbits per second is used with all Xsan elements, which yields a theoretical limit of 200 MB/s for transmission and reception, for a total of 400 MB/s per cable.
There are two kinds of entities in Fibre Channel networking:
• Initiators are end-user computers and servers that receive data from and transmit data to storage.
• Targets are storage arrays and tape drives that transmit data to and receive data ...