Digital Equipment DECstation 5000/100 Series, Maintenance Manual

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Troubleshooting with ULTRIX Error Logs
Use the event type and physical address entries that appear
in ULTRIX error logs to determine which part of the system
hardware logged the error.
Replace the FRU that contains the failed hardware component
indicated by the error log. Refer to the section in Chapter 5
of this guide, or the TURBOchannel Maintenance Guide for
specific replacement instructions.
For a detailed explanation of error log formats, refer to ‘‘Using
ULTRIX Error Logs’’ in Chapter 3.
To Interpret Error Log Event Types
The event type listed in the second line of an ULTRIX error
log describes the general event that the error log recorded.
Table 4-3 lists possible event type codes and their meaning.
Identifying Failed FRUs 4–47