Red Hat NETSCAPE ENTREPRISE SERVER 6.1 - 08-2002 ADMINISTRATOR Technical Information download pdf (Page 15)

Chapter 1. Introduction to IBM eServer BladeCenter technology and its advantages 3

1.2 Technical overview

In this section, we will look at each of the key components individually and explain their

function within the IBM Eserver BladeCenter and the BladeCenter HS20.

1.2.1 BladeCenter chassis

The IBM Eserver BladeCenter is a 7U modular chassis capable of housing up to 14 blade

servers. The BladeCenter chassis allows individual blades to share resources such as power,

switch, management and blower modules. The front view of the BladeCenter chassis is

shown below in Figure 1-1. We can see the fourteen slots which, in this example, has been

populated by one blade server and thirteen Processor Blade Fillers. These Processor Blade

Fillers are required if a slot is not populated by a blade server or the HS20 SCSI Expansion

Option, which will be discussed later, to provide proper airflow and system cooling. The

BladeCenter Media Tray is also shown; it is located at the top of the chassis above the blade

slots. This is shown in greater detail in Figure 1-2 on page 4.

Figure 1-1 Front view of BladeCenter chassis

The Media Tray is a hot-pluggable unit that contains an interface card, CD-ROM and diskette

drive. Mounted on the interface card is a USB 1.1 port and system information LEDs which

provide status information for your IBM Eserver BladeCenter and BladeCenter HS20s.

There are five LEDs on the front panel. Figure 1-2 on page 4 illustrates the location of these

LEDs. The five LEDs are:

Power This is a green LED which indicates the presence of power in the

BladeCenter chassis. If this LED is not on, it could indicate one of the

following conditions:

• There is no power to the chassis.

• The management module is not present or has failed.

• The LED has failed.

Location This LED is used to locate or identify the particular IBM Eserver

BladeCenter. When on, this LED is bright blue and can be set to blink

or remain constant. This LED will be on as a result of a request from

the systems administrator via the Management Module or if a

component requires maintenance.

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Red Hat NETSCAPE ENTREPRISE SERVER 6.1 - 08-2002 ADMINISTRATOR Technical Information Page 15