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.

Chapter 3 Troubleshooting the Fibre Channel Links 39

For Internal Use Only

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Sun Microsystems 3900 Series, 6900 Series manual To Isolate the A3/B3 FC Link