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•
External Loopback Test - A diagnostic test in which a random data pattern is sent down to an
adapter link port. The data goes out the port and immediately returns via a loopback connector.
The returned data is subsequently validated for integrity.
Note: You cannot run the External Loopback test and ECHO test concurrently. If you select
External Loopback the ECHO test section is disabled and vice versa.
Error Action
Enables you to define what is to be done in the event of a test failure. There are two error action options:
•
Stop Test - Do not log the error and abort the test. No further tests are run.
•
Ignore - Log the error and proceed with the next test cycle.
Test Cycles
Enables you to specify test cycles three ways:
•
Select an established cycle count by clicking on the corresponding radio button.
•
Enter a custom cycle count in the blank field in the Test Cycles area.
•
Set the test to run until you manually click Stop Test, by selecting the Infinite radio button.
Test Pattern
Enter a custom test pattern to be used in tests that transfer data. The test pattern can be up to 8
hexadecimal bytes.
Test Status
The Test Status area displays how many completed cycles of each test ran, as well as the number of
errors.
To run loopback tests:
1. From the discovery-tree, select the adapter port on which you want to run the Loopback Test.
2. Select the Diagnostics tab and click Advanced Diagnostics Tests. From the Loopback Test
section of the dialog box, choose the type of Loopback test you want to run and define the
loopback test parameters.
Note: You must insert a loopback plug in the selected adapter before running an External
Loopback test.
3. Click Start. The following warning appears:
Figure 88: Run Diagnostic Tests Warning
The OneCommand Utility User Manual
Page 150
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