Sun Microsystems 3900, 6900 manual To Isolate the A1 or B1 FC Link

▼To Isolate the A1 or B1 FC Link

To isolate the A1 or B1 link, which is the FC link from the HBA to the switch, follow these steps:

1.Quiesce the I/O on the A1 or B1 FC link path.

2.Run switchtest(1M) or qlctest(1M) to test the entire link.

3.Break the connection by uncabling the link.

4.Insert a loopback connector into the switch port.

5.Rerun switchtest.

a.If switchtest fails, replace the gigabit interface converter (GBIC) and rerun switchtest.

b.If switchtest fails again, replace the switch.

6.Insert a loopback connector into the HBA.

7.Run qlctest.

a.If the qlctest test fails, replace the HBA.

b.If the qlctest test passes, replace the cable.

8.Recable the entire link.

9.Run switchtest or qlctest to validate the fix.

10.Put the path back into production.

48 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide • March 2003

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