HP Fabric Clustering System HP-UX Administrator's Guide, March 2008

the port. If there is no traffic going across what should otherwise be a busy port, refer to status
LEDs next to the port or check the physical connections.
Traffic can be analyzed across individual ports or aggregated total across interface cards.
About Logging and Tracing
In general, two types of messages are generated: Events and Traces.
About HP Fabric Events
Event messages are generated whenever a significant event occurs in the system, and cannot be
turned-off or configured by the user.
The following types of scenarios fall into the Events category:
• A Subnet Manager has been started (created)
• A new HP Fabric node is in-service
• An existing HP Fabric node is out-of-service
• A new HP Fabric multicast group is created
• A new multicast member is added to an existing multicast group
• An existing multicast group is deleted
About Tracing
Trace messages are only generated when the user has explicitly enabling tracing for
debugging/trouble-shooting purposes. By default, tracing is disabled.
The trace feature has different levels of control to allow the user to dynamically select the amount
and/or type of tracing information to be generated.
• Application
• Module
• Trace-Level
• Flow
Application
The number of applications may change between releases. The numbers assigned to applications
may also change. Check application and module number assignments using CLI help (i.e.,?)
before setting a trace level.
Module
"Module" is used to specify what module of code (library), in the selected application tracing
should be configured for.
The number of modules may change between releases. The numbers assigned to modules may
also change. Check module number assignments using CLI help before setting trace levels.
Trace-Level
"Trace-Level" is used to specify the verbosity of the output. You can specify different levels of
verbosity to control the amount of the tracing information that is generated.
Trace levels are described in the following table:
Table 7-7 Trace Level Descriptions
DescriptionTrace Level
No tracing information will be generated. This is the default setting to ensure the best SM
performance.
NO_DISPLAY
Not currently used.VERY_TERSE
Monitoring and Troubleshooting the Switch 125