Pseries 7311 Model D20 Overview; Model D20 I/O Subsystem Features; Model D20 Pci-X Slots - IBM pSeries 7311 D10 Service Manual

Hide thumbs Also See for pSeries 7311 D10:

Table of Contents

pSeries 7311 Model D20 Overview

The Model D20 is a 19-inch, rack-mountable I/O subsystem that is attached to a processor subsystem to

extend the system's capacity for I/O adapters and disk drives. The I/O subsystem includes redundant

concurrently maintainable power and cooling.

Seven PCI slots are available for PCI adapters. Because the PCI slots support hot-pluggable adapters, the

I/O subsystem can have adapters installed without turning off power. The Model D20 is 4 EIA units high

and is compatible with 19-inch EIA rack enclosures.

The features of the Model D20 enable this I/O subsystem to extend the input and output capabilities of the

processor subsystem. Features such as PCI-X adapters and internal SCSI disk drives are supported.

Model D20 Operator Indicators

LEDs are used on the Model D20 as operator indicators. Tables found in "Model D20 PCI-X Slots" and

"Model D20 Power" on page 18 describes the LED states and their definitions. For more information on

LEDs and their definitions, see Chapter 5, "Fault and Attention LEDs," on page 173. LEDs can be found on

or near the following FRUs:

v LED indicators visible on each PCI adapter light pipe

v LEDs for power on, attention, SCSI activity

v Attention/Identify LEDs

v Rack Beacon

Seven PCI-X slots are available. The slots are 64-bit capable at up to 131.5 Mhz, 3.3 volts. The slots are

numbered on the rear of the chassis from left to right 1 through 7. The I/O backplane and each I/O slot

have green power indicator LEDs and amber identify LEDs. The following illustration shows the LED

locations when viewing from the rear of the I/O drawer.

1 PCI-X Expansion Slot 1

2 PCI-X Expansion Slot 2

3 PCI-X Expansion Slot 3

4 PCI-X Expansion Slot 4

5 PCI-X Expansion Slot 5

Eserver pSeries 7311 Model D10 and Model D20 Service Guide

6 PCI-X Expansion Slot 6

7 PCI-X Expansion Slot 7

A Green Power LEDs

B Amber Identify LEDs

Table of Contents

Pseries 7311 d20