Service manual

Chapter 4 Diagnostics
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• add comments to the Support Ticket
If you have TopTools remote management software installed and configured for use with DiagTools, you can
accomplish any of the above list of tasks remotely.
About Error Messages
Each error message reported by DiagTools is designated by a hexadecimal number; a short note on the type
of error; and a list of one or more steps the user can take in response. When you run a test, it exercises
many aspects of the hardware, so the number of possible error messages exceeds 300. Most of these are
encountered rarely, if ever.
Error codes can be viewed on line from the DiagTools User menu within the advanced series of tests, or you
can refer to Chapter 3 of the HP NetServer DiagTools Error Reference and User Guide.
Advantages and Limitations of Hardware Diagnostics
Off-line diagnostic software is useful in making sure that has been eliminated as the cause for possible
system problems. Such diagnostic tools can easily be shipped with a server, and they are relatively easy to
use.
However, off-line diagnostic software should be used only by experienced personnel who can take a wider
view of its limitations, which include:
• booting the server from the diagnostics diskette
• no access to operating system error logs, since the OS is not operating at the same time as the
diagnostic tools
• limited ability to test only a single component at a time
• inability to indicate problems with wrongly configured systems or the network
Event Log Display Utility
This utility shows events logged in the System Event Log (SEL) and provides advisory information. To
access this utility, boot the system with the Navigator CD-ROM in the CD-ROM drive. When the Navigator
Main Menu comes up, select:
"NetServer Utilities", then "More NetServer Utilities," then "Event Log Report Utility."
NOTE Be patient, as the utility may take a while to read the event log from non-volatile
memory.
The Event Log Display Utility is also available through DiagTools.
POST Routines
The POST is performed during system startup. An error message is displayed if an error condition is
encountered.
The POSTS executed during startup are:
Processor Test
Tests the processor's registers. Test failure causes an error message to be
displayed and the boot process to abort.