Sun Microsystems 6900 - Manual (Page 114)

94 Sun StorEdge 3900 and 6900 Series 2.0 Troubleshooting Guide • March 2003
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■
When you insert a loopback connector in to the T port, no green light appears to
indicate a proper insertion. However, the test will run and be valid.
■ If only one of the links has failed and the I/O is traveling over the remaining link,
I/O is automatically routed over the repaired link by the switch after the failed
link is replaced and recabled. No manual intervention is required.
■ If both links have failed and a LUN failover has occurred, you must manually run
a
failbackt3path command to return the paths to their optimal state, after you
repair and recable the links.
▼ To Isolate the T1 or T2 Data Path
1. Run linktest from the Storage Automated Diagnostic Environment for a guided
isolation procedure.
2. After replacing the failed FRU, run failbackt3path , if needed.