Sun Microsystems V490 manual Pci

Models: V490

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CPU / Memory Boards

Boot Bus

Processor

Processor

Memory

Memory

Data

Switch

Processor

Processor

 

Boot Bus

Memory

Memory

Data

Switch

Centerplane Board

5-Way Data Switch

 

 

I/O

 

 

I/O

 

 

I/O

 

 

 

 

Bridge

 

 

 

 

Bridge

 

 

Bridge

 

 

 

(reserved)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fan

Power Supply

EBus

 

EBus

Boot

Boot Bus

Other I/O

PROM

Controller

 

TTYA

Power Supply

Disk

Controller

Ethernet

Controller

Ethernet

Controller

USB

Controller

EBus

DVD Controller

PCI Slots

IDPROM

PCI

Riser

Board

SC

Fan

HSSDC, USB, & Ethernet I/O

I2C Bus

FIGURE 6-1Simplified Schematic View of a Sun Fire V490 System

Consider also that some diagnostics must function even when the system fails to start. Any diagnostic capable of isolating problems when the system fails to start up must be independent of the operating system. But any diagnostic that is independent of the operating system will also be unable to make use of the operating system’s considerable resources for getting at the more complex causes of failures.

76 Sun Fire V490 Server Administration Guide • August 2004

Page 104
Image 104
Sun Microsystems V490 manual Pci