Technical data

10-2 Fabric OS Administrator’s Guide
Publication Number: 53-0000518-09
Gathering Information for Technical Support
10
Gathering Information for Technical Support
If you are troubleshooting a production system, you need to gather data quickly. As soon as a problem is
observed, perform the following tasks (if using a dual CP system, run the commands on both CPs):
1. Enter the supportSave command to save RASLOG, TRACE, and supportShow (active CP only)
information for the local CP to a remote FTP location. On a dual CP system, only the local CP
information is saved and supportShow information is not available on the active CP.
For details about the supportSave command, refer to “Viewing and Saving Diagnostic Information”
on page 9-14 and “Setting Up Automatic Trace Dump Transfers” on page 9-15
2. Enter the pdShow command to display data from a panic dump file. The panic dump file contains
information that might be useful to determine the cause of the system panic.
3. Enter the saveCore command to save or remove core files created by daemons.
For more details about these commands, refer to the Fabric OS Command Reference Manual.
Troubleshooting Questions
Common steps and questions to ask yourself when troubleshooting a system problem are as follows:
1. What is current Fabric OS level?
2. What is switch hardware version?
3. Is the switch operational?
Hosts
• Incorrect host bus adapter
installation
• Incorrect device driver installation
• Incorrect device driver
configuration
• Host adaptor LEDs
• Host operating system
diagnostic tools
• Device driver diagnostic tools
• Switch commands (for example,
switchShow or nsAllShow) for
diagnostics
Storage Management
Applications
Incorrect installation and
configuration of the storage devices
that the software references.
For example, if using a volume-
management application, check for:
• Incorrect volume installation
• Incorrect volume configuration
Application-specific tools and
resources
Table 10-1 Common Troubleshooting Problems and Tools (Continued)
Problem Area Investigate Tools