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 two power supplies are installed on the system a failed power supply can be
replaced by hot swapping.
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 fan module 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
POST
Error Codes Hot-Swap Fan Modules Hardware Reference
in chapter 5.
A
B
A
Fan module 0
B
Fan module 1
Figure 1-10 Hot Swap Fan Modules
Summary of Contents for EXPRESS5800/120Md Series
Page 1: ... U s e r s G u i d e EXPRESS5800 120Md ...
Page 2: ...NEC ...
Page 3: ... U s e r s G u i d e EXPRESS5800 120Md ...
Page 58: ...2 16 Setting Up the System Figure 2 10 Connecting the AC Power Cord to the Server ...
Page 64: ...2 22 Setting Up the System ...
Page 92: ...3 28 Configuring Your System ...
Page 165: ...A Technical Specifications Server Unit ...
Page 168: ...A 4 Technical Specifications ...
Page 174: ...B 6 Interrupt Request PCI IRQ Device I O Port Address Assignments ...
Page 185: ...D ROMPilot BIOS Error Codes ROMPilot BIOS Error Codes ...
Page 188: ...D 4 ROMPilot BIOS Error Codes ...
Page 198: ...10 Glossary ...
Page 204: ...Index 4 ...
Page 205: ...xx ...
Page 206: ... 456 01557 N00 ...