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

Table 7-7 Trace Level Descriptions (continued)
DescriptionTrace Level
This level is used to generate the basic flow of MAD packet as it goes through the Subnet
Manager state machine. Verbose description will be made to the success or failure of the MAD
packet. For example, a PathRecord lookup failure will include description on the cause of the
failure (SGID is not found in database, DGID is not found in database, no component is specified
in the component mask…) instead of simple success or failure code.
TERSE
This level shows the MAD management class header information.VERBOSE
This level shows the MAD in a decoded format according to HP Fabric Switch decoding
algorithm.
VERY_VERBOSE
This level shows the MAD in its raw format.SCREAM
The information at the specified level and below is shown. For example, if you are only interested
in seeing information that belongs to the VERBOSE category, you can dynamically set the control
to VERBOSE. The trace software will then display information in the VERBOSE, TERSE and
VERY_TERSE categories.
Flow
"Flow" is used to specify a particular flow in the code. How flows are specified varies, depending
on the module.
• 0x1: This flow shows all the Subnet Management (SM) discovery, assignment routing and
routing processing.
• 0x2: This flow shows all the Subnet Management Agent (SA) related processing.
• 0x4: This flow shows the trap related processing.
• 0x8: This flow shows the redundancy related processing.
• 0x10: This flow shows the Related Multipack Protocol (RMPP) related processing.
• 0x20: This flow shows the partition management related processing.
• 0x1000: This flow shows the internal state machine (may create more flow for more
granularity for path, mcast, …).
• 0x2000: This flow shows the user configuration management related processing.
• 0x4000: This flow triggers the HP Fabric Switch Subnet Manager to take a snap shot of the
current logging information for the trace.
For example, use:
• 0x4001 to take a snapshot of the SM logging information.
• 0x4002 to take a snapshot of the SA information.
• 0x8000: This flow triggers the MAD packet to be displayed.
For example, use:
• 0x8002 to display MAD packets and SA related processing.
• 0x8001 to display SM MAD packets and SM related processing.
Troubleshooting the HP Fabric Network
Ping
As on any IP network, you can use the UNIX ping command to test connectivity between IPoIB
HP Fabric-attached hosts. For more information, see “Verifying Connectivity” in Chapter 3.
126 Monitoring and Troubleshooting