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Tier 2: Storage Area Network View
Fibre Channel Fault Isolation Utility
The Fibre Channel Fault Isolation Utility (FFIU) verifies the integrity of a new
or existing FC-AL installation. When used with troubleshooting flow charts,
this utility provides fault detection and help in locating a failing device on the
FC-AL.
Each device on the FC-AL has an Arbitrated Loop Physical Address (ALPA).
The ALPA is allocated dynamicallyit can change with each power-up or as
new devices are added to the loop. The fault isolation utility indicates all
devices that are active on the FC-AL. The utility dynamically updates the
screens to show the current ALPA of each component. Additionally, a Loop
Error Histogram is displayed when specific servers or components are
highlighted to further analyze the health of individual components. The utility
analyzes Fibre Channel components including the Host Bus Adapter and the
Fibre Channel Tape Controller. The Fibre Channel Storage Hub 12 is logically
transparent to the operations of the FC-AL, but even a failed Storage Hub 12
can be detected when the Fault Isolation Utility is used in combination with
the Troubleshooting Flow Charts.
Details and Flow Charts are available in the Fibre Channel Troubleshooting
Guide (Part Number 297877-004).
Installing the Utility
The latest files for the Fibre Channel Fault Isolation Utility, as well as
information about installing the utility, are located on the Compaq SmartStart
and Support Software CD. To access these files, create a set of Compaq
diskettes from the Compaq SmartStart and Support Software CD.
Running the Utility
CD Operations
To run the Fibre Channel Fault Isolation Utility:
1. Insert the SmartStart CD in the CD ROM drive.
2. Select Run Fibre Channel Diagnostics.
3. Select Next. The Windows-based utility will load automatically.
Diagnostics 69
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