System Overview 1-25
System Functions
The following subsections describe select system functions.
Hot Swapping
Hot swapping allows a device to be replaced, such as a hard disk drive while its power
is on, as listed below.
!
Disk array system:
Any failed hard disk drive can be replaced while the system is running.
!
Hot swap fans:
Any one of the two system fan modules (three fans per module) can be replaced
while the system power is on.
!
Power redundant system:
When three power supplies are installed on the four processor system a failed power
supply can be replaced by hot swapping.
Hot Plug PCI
Hot Plug PCI bus slots are located under the Hot Plug PCI Bay door of the server (see
Figure 1-9). This PCI bus allows devices to be installed or removed while the server is
powered on (if the operating system supports the Hot Plug PCI function.)
Note:
Windows NT 4.0 does not support the Hot Plug PCI
function.
Fans
In addition to the power supply fans, the server has six system fans contained in two fan
modules (three fans per module) cabled to the system board. The six fans (front and
rear) are hot swappable and redundant in configuration. If one fan fails, its associated
fan changes to high speed operation. For hot-swap fan numbering see Figure 1-10.
For fan module POST error codes and system event log (SEL) information see Table
1-6.
Summary of Contents for Express5800/140Hb
Page 1: ... S e r v i c e G u i d e EXPRESS5800 140Hb ...
Page 2: ......
Page 3: ... S e r v i c e G u i d e EXPRESS5800 140Hb ...
Page 10: ...viii Contents ...
Page 18: ...xvi Using This Guide ...
Page 48: ...1 30 System Overview ...
Page 64: ...2 16 Setting Up the System Figure 2 10 Connecting the AC Power Cord to the Server ...
Page 98: ...3 28 Configuring Your System ...
Page 101: ......
Page 176: ...4 76 Disassembly and Reassembly ...
Page 200: ...5 24 Problem Solving ...
Page 201: ...6 Illustrated Parts Breakdown Exploded View Field Replaceable Units ...
Page 211: ...A Technical Specifications Server Unit ...
Page 214: ...A 4 Technical Specifications ...
Page 220: ...B 6 Interrupt Request PCI IRQ Device I O Port Address Assignments ...
Page 231: ...D ROMPilot BIOS Error Codes ROMPilot BIOS Error Codes ...
Page 234: ...D 4 ROMPilot BIOS Error Codes ...
Page 235: ...E Connectors Overview External Device Connector Pin Information ...
Page 250: ...10 Glossary ...
Page 256: ...Index 4 ...
Page 257: ...xx ...
Page 258: ... 456 01547 000 ...