Q-Logic Computer Drive IB0056101-00 G Benutzerhandbuch

IB0056101-00  G

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The following sections contain information about issues that may occur during 
installation. Some of this material is repeated in the Troubleshooting appendix of 
the QLogic HCA and InfiniPath Software User Guide.

Many programs and files are available that gather information about the cluster, 
and can be helpful for debugging. See appendix D, Useful Programs and Files, in 
the QLogic HCA and InfiniPath Software User Guide.

Some of the hardware issues that may occur during installation are described in 
the following sections. Use the LEDs, as described in 

, to help diagnose problems.

If a node repeatedly and spontaneously reboots when attempting to load the 
InfiniPath driver, it may be because the QLogic adapter is not installed correctly in 
the HTX or PCI Express slot.

Some HTX motherboards may require that two or more CPUs be in use for the 
QLogic adapter to be recognized. This is most evident in four-socket 
motherboards.

This section covers issues related to BIOS settings.The two most important 
settings are:

„

Advanced Configuration and Power Interface (ACPI). This setting must be 
enabled. If ACPI is disabled, it may cause initialization problems, as 
described in the Troubleshooting section of the QLogic HCA and InfiniPath 
Software User Guide. 

„

Memory Type Range Registers (MTRR) mapping must be set to Discrete. 
Using a different setting may result in reduced performance. See 

 for details.