HP Integrity cx2600 HP Integrity cx2600 Operations and Maintenance Guide - Page 53

Troubleshooting, Introduction, Troubleshooting Methodology

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4 Troubleshooting Introduction This chapter presents troubleshooting information. Basic tips for startup problems are presented, audio cues and LED indicators are described and interpreted, are error messages (and how to retrieve them) are described. In addition, problems that are associated with I/O paths and functions are discussed here. 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 can cause burns when parts are short-circuited by metal objects such as tools or jewelry. CAUTION: Do not operate the server for more than two minutes with any cover (including power supply and disk drive covers) removed. The covers also provide EMI containment and direct airflow within the chassis. Depending on which cover or assembly is missing, the server can shut down, interrupting operations. In addition, damage to system components can result due to overheating. You can safely remove the front grill while the HP server is running to remove and replace hot-swappable fans. You can replace the hot-swappable power supplies and one hot-swappable fan (accessible from the rear of the chassis) at any time. For any other service activity requiring access to internal components, power off the server and observe all safety precautions. 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 server 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 startup problems. LED indicators on the front and rear of the server present server status. Error messages are displayed on local and remote consoles. System history (console, event, and history logs) is available through the management processor and can be accessed through a console. 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://www.hp.go/bizsupport/. The offline tools are available for downloading at http://software.hp.com. Other information that can aid in troubleshooting is contained elsewhere in this document. Refer to "Controls, Ports, and Indicators" (page 9) for additional information about LEDs in your system. Refer to "Utilities" (page 73) for information about the Extensible Firmware Interface (EFI), the Pre-OS System Environment (POSSE), and the Management Processor (MP). Troubleshooting 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. Introduction 53

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4 Troubleshooting
Introduction
This chapter presents troubleshooting information. Basic tips for startup problems are presented,
audio cues and LED indicators are described and interpreted, are error messages (and how to
retrieve them) are described. In addition, problems that are associated with I/O paths and functions
are discussed here.
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 can
cause burns when parts are short-circuited by metal objects such as tools or jewelry.
CAUTION:
Do not operate the server for more than two minutes with any cover (including
power supply and disk drive covers) removed. The covers also provide EMI containment and
direct airflow within the chassis. Depending on which cover or assembly is missing, the server
can shut down, interrupting operations. In addition, damage to system components can result
due to overheating.
You can safely remove the front grill while the HP server is running to remove and replace
hot-swappable fans. You can replace the hot-swappable power supplies and one hot-swappable
fan (accessible from the rear of the chassis) at any time. For any other service activity requiring
access to internal components, power off the server and observe all safety precautions.
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 server 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 startup
problems. LED indicators on the front and rear of the server present server status. Error messages
are displayed on local and remote consoles. System history (console, event, and history logs) is
available through the management processor and can be accessed through a console.
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://www
.hp.go/bizsupport/
.
The offline tools are available for downloading at
http://softw
are.hp.com
.
Other information that can aid in troubleshooting is contained elsewhere in this document. Refer
to
“Controls, Ports, and Indicators” (page 9)
for additional information about LEDs in your
system. Refer to
“Utilities” (page 73)
for information about the Extensible Firmware Interface
(EFI), the Pre-OS System Environment (POSSE), and the Management Processor (MP).
Troubleshooting 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.
Introduction
53