Sun Microsystems Sun StorageTek SG-XPCIE20FC-NEM-Z - Manual (Page 17)

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C H A P T E R
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Network Express Module Overview
This chapter provides a basic overview of the Sun StorageTek™ 4 Gb Fibre Channel
(FC) Network Express Module (NEM) Host Bus Adapter (HBA). This chapter also
describes the various operating systems, host platforms, storage, and infrastructure
configurations that support the NEM. This chapter contains the following topics:
■ “NEM Features and Specifications” on page 1
■ “Operating System Requirements” on page 4
■ “System Interoperability” on page 4
NEM Features and Specifications
The Sun StorageTek 4 Gb FC NEM 20-Port HBA consists of a 20-port NEM bus
expansion board that interfaces a FC optical media bus. The NEM provides closed
chassis adapter installation, removal, integrated hot-plug, and protection from
electrostatic discharge (ESD) handling damage.
The 20-port NEM consists of ten independent HBAs. Each HBA has two FC ports
which provide exclusive connections to a single blade. The ports of each HBA cannot
be shared with any other blade in the chassis.
The NEM supports 20 independent FC buses operating at 4.25 Gbits/sec. It is also
backward compatible with 2.125-Gbit/sec and 1.0625-Gbit/sec devices. Small-Form
Factor (SFF) optical transceivers are used to connect to the external FC buses.