Chapter 6. TROUBLESHOOTING
If your PCI ESCON Adapter fails to initiate successfully this chapter will provide you with some general troubleshooting guidelines to help you identify and fix your problem.
If after you have been through this troubleshooting chapter you are still unable to make your adapter work properly please refer to the section titled “Help and Service Information” on page 53 for information on obtaining help.
Hardware
The ESCON adapter includes two Light Emitting Diodes (LEDs) on the back edge of the adapter. These LEDs are located just below the ESCON connector and can be used to help isolate whether a problem is hardware or software related.
Each LED will illuminate in one of three colors. The top LED illuminates Red, Yellow, or Green. The bottom LED illuminates Red, Orange, or Green. When the server’s power is turned on both LEDs should always be illuminated. Table
Color \ LED | Top LED | Bottom LED |
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OFF | Power Off | Power Off |
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|
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Yellow | POST in Progress | Emulation Loaded, |
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| Channel Offline |
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|
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Red | POST Failed | Emulation Not Loaded |
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|
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Green | POST Ran Successfully | Channel Online |
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|
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Table |
| |
As soon as the system is powered on, under normal operation the ESCON adapter executes it’s own Power On Self Test (POST) and then loads the emulation firmware. Follow the steps below to determine if the adapter has powered on successfully and is operational.
Troubleshooting 47
