HP RP3440 - Manual (Page 113)

5 Troubleshooting
This chapter provides troubleshooting instructions for maintaining your HP 9000 rp3410 or
rp3440 server.
Troubleshooting Methodology
WARNING! Ensure that the system is powered off and all the power sources have been
disconnected from the server before working with the server.
Voltages are present at various locations within the server whenever an AC power source is
connected. This voltage is present even when the main power switch is in the off position.
Failure to observe this warning can result in personal injury or damage to equipment.
CAUTION: Do not operate the server for more than five minutes with any cover (including
disk drives) removed. If you are hot-swapping a fan, reinstall the cover within five minutes to
prevent overheating. Damage to system components can result due to improper cooling airflow.
To troubleshoot the server with online diagnostic tools, you must be familiar with the HP-UX
operating system. You should also be familiar with the Offline Diagnostics Environment (ODE)
which runs from BCH. Install both online and offline troubleshooting programs on your system
before trouble is suspected. Descriptions and user information about offline troubleshooting
tools are available on the HP website at
http://www.hp.com .
Use the online diagnostic tools if you can boot your system. Online troubleshooting programs
are available on the HP-UX operating system CD.
If you cannot boot your system, run the offline troubleshooting tool from the ODE CD that ships
with your server. ODE CDs are platform-specific for PA-RISC servers.
Troubleshooting System Power
This section provides information and procedures for troubleshooting the system power.
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.
Table 5-1 shows the Power button functions.
Table 5-1 Power Button Functions
Result Switch Pressed Time System State
System power on
No effect One second or less
More than one second Power connected to power
supplies, system power off
No effect
Not used. This selection initiates E-buzzer functions
that are not supported in the servers
Hard shutdown
Less than one second
More than one second but less
than five seconds
More than five seconds
System at ISL
Hard shutdown
Not used. This selection initiates E-buzzer functions
that are not supported in the servers
Hard shutdown
Less than one second
More than one second but less
than five seconds
More than five seconds
System at BCH
Troubleshooting Methodology 113