About Sun StorageTek 4Gb FC NEM (Emulex)

The Sun StorageTek 4Gb Fibre Channel (FC) Network Express Module (NEM) (Emulex) consists of a 20-port NEM bus expansion board that interfaces a 10-lane (20-lane physical) PCI Express (PCIe) bus to an FC optical media bus. The FC NEM provides closed chassis adapter installation, removal, integrated hot-plug, and protection from electrostatic discharge (ESD) handling damage.

The StorageTek FC NEM can act as either an initiator or a target. The board supports ten independent FC buses operating at 4.25 Gbps. It is also backward compatible with 2.125 Gbps and 1.0625 Gbps devices. Small Form Factor (SFF) optical transceivers are used to connect to the external FC buses.

Feature Overview

The following table lists the StorageTek FC NEM features.

Feature

Description

HBA interface

Ten PCIe x8 lanes (ten x4 active lanes)

FC interface

Dual port 4, 2, 1 Gbs auto-speed negotiation

FC topology

Point-to-point (N-port), Arbitrated Loop (NL_port) and Switched Fabric (N_port)

PCI transfer rate (maximum)

PCIe Generation One (2.5 Gbps) x4

FC interface chip

Zephyr

Onboard memory

One 4-MB flash ROM per chip, 40MB total, field-programmable

One 1.5 MB SRAM per chip, 15 MB total NEM SRAM

External FC connectors

Small form factor pluggable (SFP) multimode optic with LC-style connector

Maximum FC cable length

1 Gbps: 500 meters using 50/125 µm core fiber

- - - - - -300 meters using 62.5/125 µm core fiber

2 Gbps: 300 meters using 50/125 µm core fiber

- - - - - -150 meters using 62.5/125 µm core fiber

4 Gbps: 150 meters using 50/125 µm core fiber

- - - - - -70 meters using 62.5/125 µm core fiber

LED indicators

Two LEDs per channel (yellow, green) on front panel as status indicators

Power LED, Attention LED, and Attention button on front panel to support hot-swap functionality

Form Factor

PCIe NEM

For more information, see the Sun StorageTek 4Gb FC NEM Host Bus Adapter User's Guide (Sun Part number: 819-7929) at Sun Documentation.