Q-Logic IB6054601-00 D Switch User Manual


 
C – Troubleshooting
Useful Programs and Files for Debugging
IB6054601-00 D C-29
Q
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.