Technical data

Brocade SilkWorm 4100 Hardware Reference Manual 3-1
Publication Number: 53-0000563-02
Chapter
3
Operating the SilkWorm 4100
This chapter provides the following information:
• “Powering the SilkWorm 4100 On and Off,” next
• “Interpreting LED Activity” on page 3-1
• “Interpreting POST Results” on page 3-6
• “Maintaining the SilkWorm 4100” on page 3-6
Powering the SilkWorm 4100 On and Off
To power the SilkWorm 4100 on, connect one or both power cords to the power connectors on the
power supplies and to a power source; then, set the AC power switches to “I”. Power is supplied to the
switch as soon as the first power supply is connected and powered on.
The switch runs POST by default each time it is powered on; it requires a minimum of three minutes to
boot and complete POST.
To power the SilkWorm 4100 off, power off both power supplies by setting each AC power switch to
“O”. All devices are returned to their initial state the next time the switch is powered on.
Interpreting LED Activity
System activity and status can be determined through the activity of the LEDs on the switch.
There are three possible LED states: no light, a steady light, and a flashing light. The lights are in one of
the following colors:
• Green
• Amber
Sometimes, the LEDs flash any of the colors during boot, POST, or other diagnostic tests. This is
normal; it does not indicate a problem unless the LEDs do not indicate a healthy state after all boot
processes and diagnostic tests are complete.