User`s guide

-8 Sun StorEdge network FC switch-8 and switch-16 Operations Guide August 2001
0.3 Removal and Replacement of FRUs By
Service Providers
For removal and replacement procedures, see the “Removal/Replacement” chapter
of the SANbox Segmented Loop Switch Users Manual.
0.4 Power-On-Self-Test (POST)
Refer to the SANbox-8/16 Segmented Loop Switch Management and Users Manual for
information about the POST and the HeartBeat LEDs.
At startup, a switch runs a series of tests known as Power-On-Self-Test (POST)
diagnostics. These POST diagnostics check for proper switch operation, excluding
the GBICs. If no fatal errors are encountered, the switch becomes operational.
During the POST, the switch logs any errors encountered. Some POST messages 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.
The switch uses HeartBeat LEDs to blink the error code that describes the first error
encountered. If the error encountered is non-fatal, and affects one or more ports, it
disables the bad ports and blinks the Logged-in LED to indicate which ports are
down.
See the Sun StorEdge Network FC Switch-8 and Switch-16 Installation, and Configuration
Guide and the SANbox-8/16 Segmented Loop Switch Management and Users Manual for
information about the POST diagnostics tool.
0.4.1 POST Diagnostics
See the Sun StorEdge network FC switch-8 and switch-16 Installation, and Configuration
Guide and the SANbox-8/16 Segmented Loop Switch Management and Users Manual for
information about the POST diagnostics tool. The POST diagnostics tool supplies
information about the following:
The correctness of the boot firmware loaded in the PROM and the switch
firmware loaded in FLASH memory by checking the checksum.
The correctness of the internal switch memory.