Troubleshooting Using Leds; Power And System Leds; Figure 3-1. Control Panel Leds - HP 9000 rp3440 Installation Manual

Troubleshooting

Troubleshooting Using LEDs

Troubleshooting Using LEDs
If you suspect a hardware failure during installation, the power and system LEDs, located on the front
control panel, will help you identify the problem. The following sections describe their functions. You may
want to back up your data or replace a component before it fails.
The boot process will be monitored by the MP. With the current MP functionality, the four diagnostic LEDs
are disabled (always off). You can monitor server operation from a console using the MP.
Figure 3-1 Control Panel LEDs
Locator Button and LED

Power and System LEDs

The Power and System LEDs indicate the state of the system. When the system LED is blinking yellow or
red, a problem exists.
Table 3-2 System LED States
System LED
Off
Solid green
Blinking green
Blinking yellow (1/sec.)
Blinking red (2/sec.)
74
LAN
LED
Diagnostics LEDs
(Disabled)
1 2 3 4 LAN System
AC power off if Power LED is off
Running OS
Booting or running BCH
Attention:
Alerts of levels 3–5 detected in the MP logs
The LED will turn off once the event log has been read
Fault:
System Alert 7 detected, LED will blink until the problem is resolved
and the system boots successfully
Fatal hardware error detected by BMC, LED will blink until problem is
corrected
Power Button
Power
System
On/Off LED
LED
State
Chapter 3