IBM Midrange System DS4000 Series Hardware Manual page 467

The Diagnostics tab has three main parts:
Identifying Information: Displays information about the adapter being tested.
Diagnostic Configuration: Contains testing options (like data patterns, number of tests,
and test increments).
Loopback Test Results: Displays the results of a test showing whether the test passed or
failed and error counters.
– For a loopback test, the test result includes the following information:
• Test status
• CRC error
• Disparity error
• Frame length error
– For a read/write buffer test, the test result includes the following information:
• Loop ID/status
• Data mismatch
• Link failure
• Sync loss
• Signal loss
• Invalid CRC
Figure 7-84 Qlogic SANsurfer Diagnostics tab
Chapter 7. Advanced maintenance, troubleshooting, and diagnostics
449