HP LH4r HP Netserver Service Handbook, Volume 1 - Low End - Page 13

Troubleshooting Tools

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Troubleshooting Tools Common Installation Problems WARNING Before removing the cover, always disconnect the power cord and unplug telephone cables. Disconnect the power cord to avoid exposure to high energy levels that may cause burns when parts are short-circuited by metal objects such as tools or jewelry. Disconnect telephone cables to avoid exposure to shock hazard from telephone ringing voltages. Troubleshooting Sequence To troubleshoot an installation problem, do the following: • First, make sure that the system is configured properly. Most system problems are the result of incorrect system and SCSI subsystem configurations. Check any Configuration Utility and if your HP NetServer is configured with a disk array, check the Disk Array Utility. • If it is a network-related error, determine if the server has enough memory and hard disk drive capacity. Consult your network operating system manual. • Verify that all cables and boards are securely plugged into their appropriate connectors or slots. • Remove all added options and always change one thing at a time. If it is a hardware error, follow these steps: 1. Log users off the LAN and power down the server. Remove the HP NetServer cover. 2. Simplify the HP NetServer configuration to the minimum required: a monitor, one flexible and one hard disk drive and a keyboard. Remove all third-party options, and reinstall one at a time, checking the system after each installation. 3. Boot the system. If the system does not function, refer to the following procedures. If the System Will Not Power On Follow these steps: 1. Check to ensure that all cables and power cords are firmly plugged into their proper receptacles. 2. Make sure that the top cover is on, and is fully locked in place. Some NetServer will not power on if the top cover is off or loose. This is a safety feature. 3. Check to ensure that all parts of the system are turned on and properly adjusted. 4. If the server is plugged into a switched multiple-outlet box, make sure the switch on the outlet box is turned on. 5. Plug a different electrical device (such as a printer) into the power outlet, and turn it on. 6. Make sure that the power supplies' LEDs are lit. 7

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7
Troubleshooting Tools
Common Installation Problems
WARNING
Before removing the cover, always disconnect the power cord and unplug
telephone cables.
Disconnect the power cord to avoid exposure to high energy
levels that may cause burns when parts are short-circuited by metal objects such as
tools or jewelry.
Disconnect telephone cables to avoid exposure to shock hazard
from telephone ringing voltages.
Troubleshooting Sequence
To troubleshoot an installation problem, do the following:
•
First, make sure that the system is configured properly. Most system problems are the result of
incorrect system and SCSI subsystem configurations. Check any Configuration Utility and if
your HP NetServer is configured with a disk array, check the Disk Array Utility.
•
If it is a network-related error, determine if the server has enough memory and hard disk drive
capacity. Consult your network operating system manual.
•
Verify that all cables and boards are securely plugged into their appropriate connectors or slots.
•
Remove all added options and always change one thing at a time.
If it is a hardware error, follow these steps:
1.
Log users off the LAN and power down the server. Remove the HP NetServer cover.
2.
Simplify the HP NetServer configuration to the minimum required: a monitor, one flexible and
one hard disk drive and a keyboard. Remove all third-party options, and reinstall one at a time,
checking the system after each installation.
3.
Boot the system. If the system does not function, refer to the following procedures.
If the System Will Not Power On
Follow these steps:
1.
Check to ensure that all cables and power cords are firmly plugged into their proper
receptacles.
2.
Make sure that the top cover is on, and is fully locked in place. Some NetServer will not power
on if the top cover is off or loose. This is a safety feature.
3.
Check to ensure that all parts of the system are turned on and properly adjusted.
4.
If the server is plugged into a switched multiple-outlet box, make sure the switch on the outlet
box is turned on.
5.
Plug a different electrical device (such as a printer) into the power outlet, and turn it on.
6.
Make sure that the power supplies' LEDs are lit.