Server Controls, Leds, And Power; Front View - IBM xSeries 445 8870 User Manual

Server controls, LEDs, and power

The following section identifies the controls and indicators on the front and rear of
your server.

Front view

AC power LED
Power-on LED
Power-control
button
Reset button
Power supply
latch
Figure 1. 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: When this green LED is on, it indicates that 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: This is an automatically configured port that you can use to connect one
or more USB devices to the front of the server, using Plug and Play technology.
System-error LED: When this amber LED is on, it indicates a system error has
occurred.
Information LED: When this amber LED is on, it indicates information about a
system error has been placed in the System Error log.
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xSeries 445 Type 8870: User's Guide
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