Manual
Table Of Contents
- HP ProLiant ML100 Series Server User Guide
- Abstract
- Notice
- Contents
- Server operations
- Server setup
- Hardware options installation
- Introduction
- Access panel
- Processor option
- Installing a processor in HP ProLiant ML150 Generation 3 and Generation 5 Servers
- Installing a processor in HP ProLiant ML110 (G2, G3, and G4) and ProLiant ML150 Generation 2 Servers
- Installing a processor in HP ProLiant ML110 Generation 5 Servers
- Installing a processor in HP ProLiant ML115 and ML115 Generation 5 Servers
- SAS or SATA hard drive options
- Hard drive LED cable option
- Removable media device options
- Memory options
- Expansion board options
- Server software and configuration utilities
- Troubleshooting
- Pre-diagnostic steps
- Troubleshooting flowcharts
- Hardware problems
- Power problems
- General hardware problems
- Internal system problems
- System open circuits and short circuits
- External device problems
- Audio problems
- Printer problems
- Mouse and keyboard problems
- Modem problems
- No dial tone exists
- No response occurs when you type AT commands
- AT commands are not visible
- Data is displayed as garbled characters after the connection is established
- Modem does not answer an incoming call
- Modem does not connect to another modem
- Modem disconnects while online
- AT command initialization string is not working
- Connection errors are occurring
- You are unable to connect to an online subscription service
- You are unable to connect at 56 Kbps
- Network controller problems
- Software problems
- Firmware maintenance
- Battery replacement
- Regulatory compliance notices
- Regulatory compliance identification numbers
- Federal Communications Commission notice
- Declaration of conformity for products marked with the FCC logo, United States only
- Modifications
- Cables
- Canadian notice (Avis Canadien)
- European Union regulatory notice
- Disposal of waste equipment by users in private households in the European Union
- Japanese notice
- BSMI notice
- Korean notice
- Laser compliance
- Battery replacement notice
- Taiwan battery recycling notice
- Power cord statement for Japan
- Acoustics statement for Germany (Geräuschemission)
- Electrostatic discharge
- Support and other resources
- Acronyms and abbreviations
- Documentation feedback
- Index

Troubleshooting 61
Online/activity
LED (green)
Fault/UID LED
(amber/blue)
Interpretation
On, off, or flashing
Steadily blue
The drive is operating normally, and it has been selected by a
management application.
On
Amber, flashing
regularly (1 Hz)
A predictive failure alert has been received for this drive.
Replace the drive as soon as possible.
On
Off The drive is online, but it is not active currently.
Flashing regularly
(1 Hz)
Amber, flashing
regularly (1 Hz)
Do not remove the drive. Removing a drive may terminate the
current operation and cause data loss.
The drive is part of an array that is undergoing capacity expansion
or stripe migration, but a predictive failure alert has been received
for this drive. To minimize the risk of data loss, do not replace the
drive until the expansion or migration is complete.
Flashing regularly
(1 Hz)
Off Do not remove the drive. Removing a drive may terminate the
current operation and cause data loss.
The drive is rebuilding, erasing, or it is part of an array that is
undergoing capacity expansion or stripe migration.
Flashing irregularly
Amber, flashing
regularly (1 Hz)
The drive is active, but a predictive failure alert has been received
for this drive. Replace the drive as soon as possible.
Flashing irregularly
Off The drive is active, and it is operating normally.
Off
Steadily amber A critical fault condition has been identified for this drive, and the
controller has placed it offline. Replace the drive as soon as
possible.
Off
Amber, flashing
regularly (1 Hz)
A predictive failure alert has been received for this drive. Replace
the drive as soon as possible.
Off
Off The drive is offline, a spare, or not configured as part of an array.
Troubleshooting flowcharts
To effectively troubleshoot a problem, HP recommends that you start with the first flowchart in this section,
"Start diagnosis flowchart (on page 61)," and follow the appropriate diagnostic path. If the other flowcharts
do not provide a troubleshooting solution, follow the diagnostic steps in "General diagnosis flowchart (on
page 62)." The General diagnosis flowchart is a generic troubleshooting process to be used when the
problem is not server-specific or is not easily categorized into the other flowcharts.
The available flowcharts include:
• Start diagnosis flowchart (on page 61)
• General diagnosis flowchart (on page 62)
• Server power-on problems flowchart ("Power-on problems flowchart" on page 64)
• POST problems flowchart (on page 66)
• OS boot problems flowchart (on page 68)
• Server fault indications flowchart (on page 69)
Start diagnosis flowchart
Use the following flowchart and table to start the diagnostic process.