Server controls, LEDs, and power

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

Front view

 

DC power LED

 

Hard disk drive activity LED

AC power LED

Hard disk drive status LED

Power-on LED

 

Power-control

 

button

 

Reset button

USB port

 

Power supply

 

latch

 

Diskette drive

System-error LED

activity LED

(amber)

Diskette eject

Information LED

(amber)

button

SCSI activity LED

Diskette drive

(green)

eject button

 

 

Locator LED

 

(blue)

 

DVD-ROM drive eject button

 

DVD eject button

 

DVD-ROM drive activity LED

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: 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.

Information LED: This amber LED is lit when information about a system error has been placed in the System Error log.

Chapter 1. Introducing the IBM xSeries 445 server 9

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IBM 8870 manual Server controls, LEDs, and power, Front view