Q-Logic 16HA user manual Power-On-Self-Test Post

Power-On-Self-Test (POST)

NOTE:

In the following POST error descriptions you will note that some errors result in a Switch that is operable, but in a degraded way (non-fatal errors), other errors result in a Switch that is not operable (fatal errors).Whether the problem is fatal or non- fatal, please contact QLogic Customer Support or your authorized maintenance provider. If the problem is non-fatal, you should be able to run in a degraded mode until the problem is fixed.

When POST is complete and errors are encountered, the Switch uses the Heartbeat LED to blink an error code which describes the first fatal error encountered. These error codes are described next in this section. The Switch then reads its error log and if it has encountered non-fatal errors that affect one or more ports (but the remaining ports are operable) it will disable the bad ports and blink the Logged-in LED of the affected port or ports to indicate which ports are down. If the error is non-fatal but does not affect a single port or group of ports, only the Heartbeat LED blinks an error code. In all cases, the Switch displays the POST error indica- tions until you power it down.

For example:

•If the POST encounters a PROM Checksum error, the entire Switch is inoperable. The Heartbeat LED will blink the error code for the fatal PROM Checksum error. The entire Switch is down and no port Logged-in LEDs are lit because the problem does not affect an individual port or ports.

•If the POST encounters a Bus error, the Switch may operate in a degraded mode because it has multiple Buses. It can operate with one or more of them in operation but some normal processing functions such as in-order delivery may be adversely affected. The Heartbeat will blink the error code for the non-fatal Bus error. The Switch may operate (a little slower) and no port Logged-in LEDs are lit because the problem does not affect the ports.

•If the POST encounters a Port error, the Switch may operate with the remain- ing Ports. The Heartbeat blinks an error code for the non-fatal Port error. The Switch disables the failing port or ports and blinks their Logged-in LEDs.

The POST diagnostic program performs the following basic tests:

•checksum tests on the Boot firmware located in a PROM and the main Switch firmware located in FLASH memory

•functional hardware tests on internal Switch memory

•various read/write register and loopback data-path tests on the Switch logic

•Frame Bus and Auto Route logic tests

SANbox-16HA Fibre Channel Switch		Diagnostics/Troubleshooting 3-7
Installer’s/User’s Manual	59005-03 Rev. A