Storage Subsystems Troubleshooting Guide

Chapter 3 Troubleshooting the Fibre Channel Links 33
For Internal Use Only
Note – You can find procedures for restoring virtualization engine settings in the
Sun StorEdge 3900 and 6900 Series Reference Manual.
▼ To Verify the A2/B2 FC Link
You can check the A2/B2 FC link using the Storage Automated Diagnostic
Environment, Diagnose—Test from Topology functionality. The Storage Automated
Diagnostic Environment’s implementation of diagnostic tests verifies the operation
of user-selected components. Using the Topology view, you can select specific tests,
subtests, and test options.
Refer to Chapter 5 of the Storage Automated Diagnostic Environment User’s Guide for
more information.
FRU Tests Available for A2/B2 FC Link Segment
■ The linktest is not available.
■ The switch and/or GBIC—switchtest test:
■ Can be used only in conjunction with the loopback connector.
■ Cannot be cabled to the virtualization engine while switchtest runs.
■ No virtualization engine tests are available at this time.
▼ To Isolate the A2/B2 FC Link
1. Quiesce the I/O on the A2/B2 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.