Troubleshooting
Chapter Overview
Chapter Overview
This chapter contains the following main sections:
•Flowcharts for Troubleshooting
•Identifying LCD-Indicated Conditions
•Fan Faults and Warnings
•Dealing with a Boot Failure
•Selftest Failures
•Memory Failures
•Running System Verification Tests
•Running ODE-Based Diagnostics
•Using the PIM Dump Tool to Decode HPMCs
To troubleshoot an HP VISUALIZE B2000 workstation, you must be familiar with the HP-UX operating system. You should also be familiar with the boot ROM diagnostics and the Mesa (Support Tools Manager) online tests, which we describe in this chapter.
As a super-user who is troubleshooting an HP-UX system, you should be able to shutdown and reboot a system, start and stop processes, and examine error logs. You should also be able to use systems utilities such as ioscan to check device files and configurations, swlist to show loaded patches and software bundles, and SAM to configure and show enabled services and configurations. You should also be familiar with STM, the online diagnostics tool. You can view man pages on any of these online utilities or commands.
Note any error or status messages, then run the power-up boot ROM diagnostics, known as Self Test. If the Self Test diagnostics fail, replace the FRU that is indicated. If the tests pass, but you still suspect a problem, run the ISL diagnostics and Mesa (Support Tools Manager) online tests.
For a complete description of using ISL diagnostics and Mesa (Support Tools Manager), refer to the following website URL:
http://wojo.rose.hp.com/
Flowcharts for Troubleshooting
The following four figures contain troubleshooting flowcharts you can follow to isolate a failing Field Replaceable Unit (FRU). Figure 3-1 contains the main (power on LCD) troubleshooting flowchart. Figures 3-2 through 3-4 then contain flowcharts for console, bootable device, and HP-UX troubleshooting, respectively.
