User`s guide

Chapter
2
Troubleshooting
Introduction
This Chapter describes how to troubleshoot the StorageWorks Fibre Channel
Storage using feedback from diagnostics, status indicators and LEDs, memory
and loopback tests, and point-of-failure tests. The major sections are:
■
Diagnostics Overview
■
Status and Activity Indicators
■
Diagnostic Tests
■
Diagnostic Error Messages.
Diagnostics Overview
The Switch is designed for maintenance-free operation. In the case of a
failure, self-diagnostic tests aid in isolating equipment or Fabric failures.
The Switch employs Power-On Self-Tests (POSTs) and diagnostic tests. The
diagnostic tests determine status and isolate problems.
Telnet commands determine the Switch’s status, error conditions, and Switch
operating statistics.
Diagnostics are run using either front panel controls or commands from a
Telnet session. The front panel and Telnet diagnostics overlap in function but
are mutually exclusive. You can, for example, start a diagnostic test from the