Chapter 3. Server Controls, Leds, And Power; Front View - IBM xSeries 445 Installation Manual

Chapter 3. Server controls, LEDs, and power

This chapter describes the controls and indicators, and provides the information
needed to turn on and turn off the server.

Front view

AC power LED
Power-on LED
Power-control
button
Reset button
Power supply
latch
Figure 53. Front view of xSeries 445
AC and DC power LED: Each hot-swap power supply has an ac power LED and a
dc power LED. During typical operation, both the ac and dc power LEDs are lit. For
any other combination of LEDs, see the Hardware Maintenance Manual and
Troubleshooting Guide on the IBM xSeries Documentation CD.
Hard disk drive activity LED: This green LED is lit when the hard disk drive is in
use.
Hard disk drive status LED: When the drive is connected to the integrated SCSI
controller with RAID capabilities, a flashing status LED indicates that the drive is a
secondary drive in a mirrored pair and the drive is being synchronized. When the
drive is connected to an optional ServeRAID controller, a slowly flashing (one flash
per second) status LED indicates that the drive is being rebuilt. When the LED is
flashing rapidly (three flashes per second), it indicates that the controller is
identifying the drive.
USB port: Use this automatically configured port to connect one or more USB
devices to the front of the server, using Plug and Play technology.
System-error LED: This amber LED is lit when a system error has occurred.
© Copyright IBM Corp. 2004
Diskette drive
activity LED
Diskette eject
button
Diskette drive
eject button
DC power LED
Hard disk drive activity LED
Hard disk drive status LED
System-error LED
(amber)
Information LED
(amber)
SCSI activity LED
(green)
Locator LED
(blue)
DVD-ROM drive eject button
DVD eject button
DVD-ROM drive activity LED
USB port
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