Filter
Top Products
Identifying and Diagnosing Hardware Issues
Should a failure occur, the server LEDs, the diagnostic LEDs, and the SEL help you identify the
problem.
• The server LED, LAN LED, and diagnostic LEDs on the display panel of the server change
color and blink in different patterns to help identify specific problems. LEDs on the front
and rear panels of the server display LAN activity.
• The SEL provides detailed information about the errors identified by the LEDs.
If the LEDs and SEL do not give you enough information for you to identify the problem you
are experiencing, HP also provides diagnostic tools with each operating system.
Power and System LEDs
The power and server LEDs indicate the state of the server. When the server LED is flashing
yellow or red, a problem exists.
NOTE: When the optional iLO MP card is installed, the four diagnostic LEDs on the display
panel are disabled.
Systems with the Optional Management Processor Installed
Table 5-2 details the LED states that exist for servers having an optional iLO MP card installed.
Table 5-2 System LED States
StateSystem LED
OffOff
Running operating systemSolid green
Booting or running code other than operating system (boot or diagnostic).Flashing green
Attention indication: Alerts of levels 3-5 detected in the optional iLO MP logs. The
LED turns off after the event log has been read.
Flashing yellow (1/sec.)
Fault indication: System alert level 7 detected, LED blinks until the problem is
resolved and the server boots successfully or until it is manually turned off.
Flashing red (2/sec.)
For server alerts of levels 3-5, the attention condition on the server LED can be cleared by accessing
the logs using the sl command available in the Main Menu mode or the BMC command line
interface (CLI) cli>sel command through the console (serial A) port. To access the BMC CLI
press: ESC. To exit BMC CLI press ESC Q (Shift Q).
NOTE: Always check the optional iLO MP SELs in the case of a flashing yellow or red System
LED before replacing any hardware.
iLO MP Event Logs
The optional iLO MP provides diagnostic and configuration capabilities. For details on the iLO
MP commands, see the HP Integrity and HP 9000 iLO Operations Guide. To access the iLO MP:
1. Login with proper username and password.
NOTE: Default administrator login and password: login = Admin password = Admin.
2. To display the console history log, enter cl. This log displays console history.
100 Troubleshooting