Q-Logic 16HA Manuel D’Utilisation

The Switch checks the state of the Test Mode switch as part of its power-up proce-
dure. Refer to 

 for the location of the Test Mode switch.

Figure 3-1   Test Mode Switch

The normal setting of this switch (note the location of the dot on the switch relative 
to the dot on the faceplate) instructs the Switch to run the diagnostics one time at 
startup. If no fatal errors are encountered, the Switch places itself in normal 
operating mode. The diagnostics run at startup are the Power-On-Self-Test (POST) 
diagnostics.

These POST diagnostics check for proper Switch operation except for the GBICs. 
During the POST, the Switch logs any errors encountered. Some POST errors are 
fatal, others are non-fatal. A fatal error disables the switch so that it will not 
operate. A non-fatal error allows the switch to operate, but with some decrease in 
performance until the problem can be corrected.

For example:

•

A PROM checksum failure is an example of a fatal error. This indicates that 
the PROM firmware is corrupt and the Switch will not operate.

•

A failure associated with a Fibre Channel port is an example of a non-fatal 
error. The Switch can isolate the bad port, while the other ports continue to 
operate.

Test Mode Switch

Dot on the faceplate

Dot on the switch