Hitachi 9900 Series - Manual (Page 22)

There are four ports for each interface board or a total of 32 host interfaces for a fully
configured system. An ESCON interface board is shown in Figure 10. A FICON interface
board has a similar appearance.
A Lightning 9900 ™ Series system can connect to mainframes and open systems hosts,
thereby consolidating the storage for an enterprise under one roof for consistent
performance, availability, and ease of management. This is shown in Figure 12.
Figure 10 – An ESCON ®
host adapter board and
its major hardware
components.
13
Front-end Design of the Hitachi Lightning 9900 Series