Sun Microsystems 3900 Series General Troubleshooting Procedures, Troubleshooting Overview Tasks

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General Troubleshooting

Procedures

This chapter contains the following sections:

■“Troubleshooting Overview Tasks” on page 3

■“Multipathing Options in the Sun StorEdge 6900 Series” on page 7

■“Fibre Channel Links” on page 15

■“Storage Automated Diagnostic Environment Event Grid” on page 21

Troubleshooting Overview Tasks

This section lists the high-level steps to isolate and troubleshoot problems in the Sun StorEdge 3900 and 6900 series. It offers a methodical approach and lists the tools and resources available at each step.

Note –A single problem can cause various errors throughout the SAN. A good practice is to begin by investigating the devices that have experienced “Loss of Communication” events in the Storage Automated Diagnostic Environment. These errors usually indicate more serious problems.

A “Loss of Communication” error on a switch, for example, could cause multiple ports and HBAs to go offline. Concentrating on the switch and fixing that failure can help bring the ports and HBAs back online.

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