Power Switch and Indicator LEDs
The power switch and light-emitting diodes (LEDs) on the front of your server allow
you control power to the server, observe system power status, and observe disk
activity.
These features also have other built-in capabilities to assist you in diagnosing system
problems and observing system status:
As soon as the system unit is connected to a power source, the power LED will
begin blinking slowly (about 2 flashes per second) to indicate that Standby Power
is on, even though the system unit is not powered on or running.
When the system unit is turned on by pressing the power switch, the power LED
lights steadily.
If the operating system is loaded and running, a memory dump of system information
can be requested.
To enable this function, the sysdumpdev -K command must be executed before
an error condition exists.
To request a memory dump, press and hold the power switch for longer than two
seconds. Requesting a memory dump directs the operating system to save
system information to a predefined file before turning off the system. This feature
can be used to assist in recovery from system problems.
1-8 Service Guide
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