IBM PC Server 704, Руководство пользователя

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Troubleshooting
The following table describes the power-supply status conditions
that the LEDs indicate.
Power Supply OK
LED Power Supply
Current OK
LED Status
Off
1
Off
1
The power supply has shut down. This
occurs when the voltage is too high,
when a fan fails, or when the power
supply becomes too hot.
On Off The voltage to the power supply is low.
Because the power supply can meet the
present system requirements, the power
supply continues to run.
Off On The power supply has failed. The
present system power requirements are
too low to cause the power supply to
shut itself down.
On On The supply is on and OK.
Notes:
1. The Power-on indicator on the front of the server is not lit.
2. The Power fail indicator on the front of the server illuminates when either power
supply LED is not lit.
Hot-swap Drive Status Indicators
You can use the status LEDs above each of the hot-swap drive bays
to obtain status information for the drive in the bay.
Ÿ Power On LED
(Left Green LED): A SCSI drive is present in the
bay, and the power is on.
Ÿ Drive In-Use LED (Center Green LED): The server is writing to
or reading from the hard disk.
Ÿ Drive Fault LED (Amber LED): The SCSI drive is faulty. In a
disk-array model, this amber LED blinks when the drive is part
of a disk array and is being rebuilt.
Chapter 4. Solving Problems
251