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Nmi functionality, System maintenance switch – HP ProLiant ML350 G6 Server User Manual

Page 14

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Component identification 14

Item

Description

Status

11

System fan 1

Amber = Fan is missing or has failed.

Off = Fan is functioning.

12

Processor 1 DIMMs

Amber = An error has occurred.
Off = Normal operation

NMI functionality

An NMI crash dump enables administrators to create crash dump files when a system is hung and not

responding to traditional debug mechanisms.
Crash dump log analysis is an essential part of diagnosing reliability problems, such as hangs in operating
systems, device drivers, and applications. Many crashes freeze a system, and the only available action for

administrators is to cycle the system power. Resetting the system erases any information that could support
problem analysis, but the NMI feature preserves that information by performing a memory dump before a
hard reset.
To force the OS to invoke the NMI handler and generate a crash dump log, the administrator can use the iLO
Virtual NMI feature.
For more information, see the white paper on the HP website
(

http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00797875/c00797875.pdf

).

System maintenance switch

Position

Default

Function

S1

Off

Off = iLO 2 security is enabled.

On = iLO 2 security is disabled.

S2

Off

Off = System configuration can be
changed.

On = System configuration is locked.

S3

Off

Reserved

S4

Off

Reserved

S5

Off

Off = Power-on password is enabled.
On = Power-on password is disabled.

S6

Off

Off = No function
On = Clear NVRAM

S7

Reserved

S8

Reserved

S9

Reserved

S10

Reserved

When the system maintenance switch position 6 is set to the On position, the system is prepared to erase all
system configuration settings from both CMOS and NVRAM.

CAUTION:

Clearing CMOS and/or NVRAM deletes configuration information. Be sure to

properly configure the server or data loss could occur.