Compaq StorageWorks Fibre Channel Troubleshooting Guide

Chapter 5
Secondary Storage System
Troubleshooting Flow Charts
This chapter contains troubleshooting flow charts that can be used to diagnose problems on a
FC-AL in a Secondary Storage System. The flow charts are listed by problem symptoms or
troubleshooting procedures, as follows:
■ Overview of the Troubleshooting Flow Charts (page 5-2)
■ Verifying FC-AL Operation (5-4)
■ Determining a Bad Link (5-6)
■ Some Fibre Channel Tape Controllers are Detected (page 5-7)
■ Visual and Physical Inspection of the FC-AL (page 5-9)
■ Checking the Link between the Storage Hub 12 and the Fibre Channel Host Bus Adapter
(page 5-11)
■ Checking the Link between the Storage Hub 12 and the Fibre Channel Tape Controller
(page 5-13)