Switch Module Status Leds - IBM Brocade 4 Gb SAN Switch Module Installation Manual

LEDs except the power LED turn off. The power LED flashes to indicate a
normal POST condition; then, POST proceeds as described in step 10 on
page 16.
v See the diagnostics information in the Fabric OS System Error Message
Reference Manual for more information about LED diagnostics.
After you install the switch module in the BladeCenter unit, the switch-module
LEDs become active. There are four possible LED states: off, lit, flickering, and
flashing. The lit (steady) LEDs and flashing LEDs can be green or amber. A
flickering LED can only be green.
The LEDs might display any of these states and colors during startup, POST,
or other diagnostic tests. This is typical and does not indicate a problem,
unless the LEDs indicate a problem after all the startup (boot) processes and
diagnostic tests have been completed. If one or more LEDs indicate a problem,
make sure that the LEDs are not set to beacon. For information about how to
turn beaconing on and off, see the Fabric OS Administrator's Guide or the Web
Tools Administrator's Guide version 5.0.1 or later.
Any errors that are detected during POST are written to the system log. This
log is accessible through the errShow command. For information about this
command, see the Fabric OS Administrator's Guide. For information about error
messages, see the Fabric OS System Error Message Reference Manual.
Note: You can also use the management module to make sure that the switch
module is operating correctly. For more information, see the
documentation for the BladeCenter unit.

Switch module status LEDs

The two LEDs in the first row at the top of the switch module represent the
switch module status. The green LED to the left is the Power LED and
indicates that the switch module is on, off or receiving power. The amber LED
to right is the fault LED and indicates that an error status has occurred on the
switch module.
Power LED
This green LED is at the top left of the switch module on the front
panel.
v When this LED is green and steady, it indicates that the switch
module is on and the power modules in the BladeCenter unit are
working correctly.
v When this LED is green and flashing, it indicates that the switch
module has passed the POST and is working correctly.
Chapter 3. Information panel LEDs and external Fibre Channel ports
21