Hitachi 9900 Series - Manual (Page 21)

About the Fibre Channel Interface Boards
Each Fibre Channel Interface Board, as shown in Figure 9, has four Interface
Processors 2 for management of connectivity to the host.
Figure 9 – A Fibre
Channel host adapter
board and its major
hardware components.
Hitachi Data Systems
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2 The Lightning 9900 ™ Series uses the Reduced Instruction Set (RISC) Intel ® i960 80MHz
processor that is especially designed for I/O operations.