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Chapter 3 Troubleshooting the Fibre Channel Links 39
For Internal Use Only
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To Isolate the A3/B3 FC Link
1. Quiesce the I/O on the A3/B3 FC link path.
2. Break the connection by uncabling the link.
3. Insert the loopback connector into the switch port.
4. Run switchtest:
a. If the test fails, replace the GBIC and rerun switchtest.
b. If the test fails again, replace the switch.
5. If the switch or the GBIC show no errors, replace the remaining components in
the following order:
a. Replace the virtualization engine-side GBIC, recable the link, and monitor the
link for errors.
b. Replace the cable, recable the link, and monitor the link for errors.
c. Replace the virtualization engine, restore the virtualization engine settings,
recable the link, and monitor the link for errors
6. Return the path to production.
The procedures for restoring virtualization engine settings are in the Sun StorEdge
3900 and 6900 Series Reference Manual.