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C – Troubleshooting

Useful Programs and Files for Debugging

IB6054601-00 D C-29

C.9

Useful Programs and Files for Debugging

The most useful programs and files for debugging are listed in the sections below.

Many of these programs and files have been discussed elsewhere in the

documentation: this information is summarized and repeated here for your

convenience.

C.9.1

Check Cluster Homogeneity with ipath_checkout

Many problems can be attributed to the lack of homogeneity in the cluster

environment. Use the following items as a checklist for verifying homogeneity. A

difference in any one of these items in your cluster may cause problems:

■ Kernels

■ Distributions

■ Versions of the InfiniPath boards

■ Runtime and build environments

■ .o files from different compilers

■ Libraries

■ Processor speeds

With the exception of finding any differences between the runtime and build

environments,

ipath_checkout will pick up information on all the above items.

Other programs useful for verifying homogeneity are listed in Table C- 2.

C.9.2

Restarting InfiniPath

If, on any node, the driver status appears abnormal, you can try restarting (as root):

# /etc/init.d/infinipath restart

These two commands perform the same functions:

# /etc/init.d/infinipath stop

# /etc/init.d/infinipath start

It may also be useful to inspect the file /var/log/messages, to check for any

abnormal activity.

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Q-Logic IB6054601-00 D Manual de usuario Pagina 103