Link Test

The linktest test is delivered with the Storage Automated Diagnostic Environment software. This test verifies the functionality for passive FC components in a SAN or DAS environment. The test will provide failing FRU isolation for devices which have external loopback tests. Currently this is limited to the Sun StorEdge Network FC Switch-8 and Switch-16 switch, SOC+ HBA and QLC22XX HBA. For link seg- ments that do not provide external loopback test (example: SOC+ to A5200), the Sun StorEdge A5000 passive components are diagnosed using the SOC+ external loopback test. The passive components include GBICs, fibre channel, FC-Switch, MIA, and FC adapters. The test will test both ends of the link segment (if possible) and enter a guided isolation when a failure is detected. linktest is executed from the view "Diagnose->Test->Test from Topology" by right clicking on a link segment's icon. Typically linktest is run when the user detectes a bad or intermittent link via an "alert" or by the visual detection on the topology graph (a red link). After starting linktest, the "Test Manager" will be utilized to guide the user through FRU isolation.