User Service Guide, Third Edition - HP Integrity cx2620 Server

4. You have now reached the point where the failed Customer Replaceable Unit (CRU or CRUs)
has been identified and needs to be replaced. You must now perform the specific removal
and replacement procedure, and verification steps (for more details, see Chapter 6: “Removing
and Replacing Components” (page 153)).
NOTE: If multiple CRUs are identified as part of the solution, fix all identified failed CRUs
to guarantee success.
5. There may be specific recovery procedures you need to perform to finish the repair.
Should a failure occur, the front panel LEDs and the SEL helps you identify the problem or CRU:
• LEDs. The front panel LEDs and LAN LEDs of the server change color and blink to help
identify specific problems, and display LAN activity.
• The SEL provides detailed information about the errors identified by the LEDs.
For system alerts of levels 3-5, the attention condition on the system LED can be cleared by
accessing the logs using the sl command, available in the iLO MP command mode. To access
the MP from the serial console port, enter Ctrl+B.
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 (for more details,
see “Diagnostics” (page 131)).
NOTE: Always check the iLO MP SEL in the case of a blinking amber or red front panel system
LED, before replacing any hardware.
Troubleshooting Using the Server Power Button
The server Power button on the front panel operates differently depending on how long the
button is held in, and on what the system is doing when the button is pressed. You must be
aware of its uses to properly troubleshoot the system.
Table 5-1 describes what happens when the server is at EFI, and you press the Power button.
Table 5-1 Server Power Button Functions When Server is On and at EFI
ReactionAction
System power turns off immediately (hard power off).1-3 seconds
System power turns off immediately (hard power off).5 seconds or longer
Table 5-2 describes what happens when the server is on with the operating system running, and
you press the Power button.
Table 5-2 Server Power Button Functions When Server is On and OS is Running
ReactionAction
System power turns off (software controlled power off).1-3 seconds
System power turns off immediately (hard power off).5 seconds or longer
If the server is off, and power is not connected to server power supplies, pressing the Power
button has no effect.
If the server is off, and power is connected to server power supplies, the front panel power LED
blinks at a 1 Hz rate. In this state, standby power is available to server circuits, but main power
is off. Table 5-3 describes what happens when the server is off, and you press the Power button.
120 Troubleshooting