Summary; 2074 Lan Adapter Diagnostics; Sample Command Output - IBM 2074 Installation And Maintenance Information

Summary

The sequence for the ESCON card is:
v During power on, it runs a POST (LED Display indicates POST steps as they
v Loads its own emulation code (LED Display scrolls firmware level and "Adapter
v OS/2 device driver BTIDD.SYS loads without error messages (LED Display
v IML CA0 or CA1 ICON start the Channel Adapter's ESCON card (LED Display
There are no wrap tests. You can use a light meter to measure the light input to the
card and the light output. To measure the light output, IML the Channel Adapter.
From the host or the ESCON director, the serial number displayed for the Tag
Results of the 2074 is now the 2074's serial number.

2074 LAN Adapter Diagnostics

In general to diagnose a LAN problem you need to determine if it is caused by 1)
Configuration, 2) Media, or 3) Failing adapter.
You shouldn't be analyzing LAN problems caused by media. What this means is, if
the adapter doesn't have the proper LEDs on, then the customer needs to ensure
that the media (cables) are certified and attached to working Hubs or MAUs. The
following table defines what is proper:
Note: Return to this point if the Adapter LEDs are OK.
2-16
: 2074 Console Support Controller Installation and Maintenance Information
v Use BTITOOL SHOW LINK INCIDENTS CARD=x (where x=0 or 1) for code
violations, bit error, and link incident information.
Sample output:
Link Incident Counts for card 1:
Implicit Errors: 0
Bit Error Threshold: 179
Loss Of Signal: 0
Not Operational: 0
Sequence Timeout: 0
Unconditional Disconnect: 0
Unconditional Disconnect Response: 0
Cumulative Link Incident Counts for card 1:
Implicit Errors: 0
Bit Error Threshold: 179
Loss Of Signal: 0
Not Operational: 0
Sequence Timeout: 0
Unconditional Disconnect: 0
Unconditional Disconnect Response: 0
v Use BTITOOL HELP TEST for a help menu of possible commands.
run)
closed")
scrolling message contains "channel offline" and possibly "No light" )
scrolling message contains "Channel online")
Table 2-3. Sample Command Output
Adapter Type
On-Planar Ethernet
Determining Proper LAN Adapter LED
Illumination
See "Start Planar Ethernet Diagnostic" at
step 3 on page 2-19.