Troubleshooting Methodology




	WARNING! Always disconnect the power cords and unplug telephone cables before removing the server cover. Disconnect telephone cables to avoid exposure to shock hazard from telephone ringing voltages. Disconnect the power cords to avoid exposure to high energy levels that may cause burns when parts are short-circuited by metal objects such as tools or jewelry.




	CAUTION: Do not operate the server for more than 2 minutes with any cover (including power supplies and disk drives) removed. The covers also provide EMI containment and direct airflow within the chassis. Depending on which cover or assembly is missing, the server may shutdown, interrupting operations. In addition, damage to system components may result due to overheating. You can safely remove the front grill while the HP Server is running to remove and replace hot-swap fans. The hot-swap power supplies and one hot-swap fan (accessible from the rear of the chassis) can be replaced at any time. For any other service activity requiring access to internal components, power down the server and observe all safety precautions.

The server was tested prior to shipping and should be in perfect working order. Failures encountered during installation may be due to damage that occurred in transit. Reseating connectors may clear problems that result from rough handling. If you are installing components or assemblies, compatibility problems or incorrect installations may be the cause of problems. If you are installing components or assemblies, check that items are correctly installed and that all connectors are fully engaged. If the unit will not power on, check the power source before proceeding.

If a problem is encountered during initial operation, remove any add-in or optional components and retest the server before continuing. Verify basic server operation before installing additional cards and configuring software and hardware for your system requirements.

Troubleshooting is based on observation of server status indications and error messages, and by checking system event logs. The system e-buzzer will provide an immediate indication of any start-up problems. LED indicators can be observed on the front and rear of the server. Error messages are displayed on local and remote consoles. System history (console, event, and history logs) are available through the management processor, and can be accessed through the console. Additional information about troubleshooting can be found in the hp Integrity cx2600 Operation and Maintenance Guide.

Offline troubleshooting programs are available on the resource CD that is shipped with your HP Server. To troubleshoot your system you should be familiar with the Offline Diagnostics Environment (ODE) which runs in the Extensible Firmware Interface (EFI). Descriptions and user information about offline troubleshooting tools are available at http://docs.hp.com. The offline tools are available for downloading at http://software.hp.com.

Using the Front Panel 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.

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 will blink at a 1-Hz rate. In this state, standby power is available to server circuits, but main power is off. Pressing and holding the power button will accomplish the following:

1 - 3 seconds. System power turns on. The e-buzzer will beep if an error is encountered. (Refer to “Troubleshooting Using Beep Codes (System e-buzzer)” for a description of the e-buzzer.)
3 - 5 seconds. The e-buzzer will repeat the last stored error message (beep code).

If the server is on and the system is at the EFI, pressing and holding the power button will accomplish the following:

1 - 3 seconds. System power turns off immediately (hard power down).
3 - 5 seconds. The e-buzzer will repeat the last stored error message (beep code).
5 seconds or longer. System power turns off immediately (hard power down).

If the server is on and the operating system is running, pressing and holding the power button will accomplish the following:

1 - 3 seconds. System power turns off (software controlled power down).
3 - 5 seconds. The e-buzzer will repeat the last stored error message (beep code).
5 seconds or longer. System power turns off immediately (hard power down).

If the Server Will Not Power Up

Power problems during installation are usually related to the install process. If your server will not power up, check the LED indicators on the power supply rear panels. Refer to “Rear Panel LEDs” and perform the following:

If the DC In indicators are lit, it can be assumed that power is available to the server.
If a fault indicator is lit, reseat the power supply. If the problem persists, remove and reseat boards within the server. If the problem still persists, replace the power supply and/or the power supply interface board.
If the DC Out indicators are lit, it can be assumed that power is supplied to the server circuits. If the console shows that the server is powered up, but server LEDs indicate that power is off, remove and reseat connectors on the LED status board. (If the problem still persists, replace the LED status board.) If the console shows that the server is not powered up (server is off), remove and reseat connectors on the system board. (If the problem still persists, replace the power supply interface board, the MP board, or the system board.)

If EFI Is Not Available

If it is not possible to reach the EFI (from either the main disk partition or CD), then you must use the following tools to help solve your problem:

Front panel LEDs (“Front Panel LEDs”)
Management processor (MP) (“Management Processor (MP) Event Logs”)
- Console messages
- System event logs (SEL)

If the Operating System Will Not Boot

If your operating system will not boot, but you are able to reach the EFI (from either the main disk partition or CD), then use the following tools to help solve your problem:

Using the EFI shell, check the system logs and analyze any error messages. Refer to “Error Messages and Event Logs”. Refer to Chapter 5 of this guide (Cable Connections) and to the hp Integrity cx2600 Operation and Maintenance Guide for information about connecting a console and using the EFI shell. (The hp Integrity cx2600 Operation and Maintenance Guide is included on the CD provided with your system.)
Offline Diagnostic Environment (ODE) (“Offline Diagnostic Environment (ODE)”)
E-Diag Tools (“E-Diag Tools”)

If the Operating System Will Boot

If your operating system is running and you are experiencing problems, use the following tools to help solve your problem.

Beep Codes (“Troubleshooting Using Beep Codes (System e-buzzer)”)
LEDs (“Troubleshooting Using LED Indicators”)
Error Messages and event logs (“Error Messages and Event Logs”)

If Intermittent Server Problems Occur

Intermittent problems that occur during installation can usually be traced to power source problems, to a loose connector, or to some other hardware problem. If you are experiencing intermittent problems, proceed as follows:

Check MP logs and analyze the problem. (Determine if there is more than one symptom and if the problem is random.) Refer to “Management Processor (MP) Event Logs”.
Verify that the DC power source is stable and within the -40 to -72 VDC range.
Reseat all rear panel connectors.
Reseat all hot-swappable fans and power supplies.
Reseat all main memory DIMMs.
Reseat all internal connectors (cable harness and board connectors).

If DVD Problems Occur

DVD problems that occur during installation are usually related to faulty connections. If you are experiencing DVD problems, proceed as follows:

Remove and reinsert the disk.
Replace the disk.
Remove and reinstall the DVD drive. Check that connectors are fully engaged.
Replace the DVD drive.

If Hard Drive Problems Occur

Hard drive problems that occur during installation are usually due to rough handling. The drive(s) may not be correctly seated or may have been damaged in transit. If you are experiencing hard drive problems, proceed as follows:

Remove and reinsert the suspect hard drive(s).
Swap the hard drive with one from another slot or with a known good spare.
Remove and reinstall the hard drive backplane. Check that connectors are fully engaged.
Replace the hard drive backplane.

If Console Problems Occur

Console problems during installations can be caused by faulty interconnections. If you are experiencing monitor, keyboard, or mouse problems, proceed as follows:

Check the monitor controls. Adjust contrast and brightness as required.
Inspect all power and interconnecting cables. Check that all console connectors are fully engaged.
Check that all MP board connectors are fully engaged.
Exercise the appropriate self-test features of the console software.