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CHAPTER
Sun Proprietary/Confidential: Internal Use Only
5
Troubleshooting the Fibre Channel
(FC) Links
FC links diagnose Sun StorEdge network FC components in a SAN or a direct
attached storage (DAS) environment. linktest(1M), which tests the health of the
FC links, is available only from the Test from Topology view of the Storage
Automated Diagnostic Environment GUI.
Note – linktest tests both ends of the link segment and enters a guided isolation
when a fault is detected.
Faults can be detected in one of two ways: when linktest sends an alert on a bad
or intermittent link, or when a red link appears on the topology graph, indicating a
failure.
This chapter contains the following sections:
■ “FC Links” on page 38
■ “Troubleshooting the A1 or B1 FC Link” on page 42
■ “Troubleshooting the A2 or B2 FC Link” on page 49
■ “Troubleshooting the A3 or B3 FC Link” on page 54
■ “Troubleshooting the A4 or B4 FC Link” on page 60