FC provides a fast and reliable method to access external storage devices. After installing a FC HBA into a PDomain PCIe slot, the PDomain can access FC storage devices over a FC network.
A typical FC SAN includes the following hardware:
FC HBA installed in the each of the server's PDomains
FC cables connecting the HBA to a FC switch
FC cables connecting the FC switch to a FC storage device
After installing and connecting the appropriate hardware, you will configure each PDomain to boot off a FC storage device over the FC SAN. Once configured, you can install the Oracle Solaris OS on the device.
In this FC environment, each server PDomain requires access to a FC storage device. Installing and cabling more than one HBA in each PDomain can provide redundant connections to a FC switch.
Oracle storage products: https://www.oracle.com/storage/
Oracle's storage networking products: http://www.oracle.com/us/products/servers-storage/storage/storage-networking/overview/