IBM xSeries 235 - Manual (Page 21)

Diskette-drive activity LED: When this LED is on, it indicates that the diskette
drive is in use.
Hard disk drive status LED: Each hot-swap drive has a hard disk drive status
LED. When this amber LED is on continuously, the drive has failed. If an optional
IBM ServeRAID ™ controller is installed in the server, when the LED flashes slowly
(one flash per second), the drive is being rebuilt. When the LED flashes rapidly
(three flashes per second), the controller is identifying the drive.
Hard disk drive activity LED: Each hot-swap drive has a hard disk drive activity
LED. When this green LED is flashing, the drive is being accessed.
Model type/serial number: The model type identifies your server model. The serial
number uniquely identifies your server.
Cover-release latch: Slide this latch to release the cover.
Reset button: Press this button to reset the server and run POST.
Power-control button: Press this button to manually turn on the server or put the
server in Standby mode (see “Server power features” on page 12).
Power-control button shield: You can install this circular disk over the
power-control button to prevent accidental manual power-off. This disk is provided
with your server.
CD-ROM drive activity LED: When this LED is on, it indicates that the CD-ROM
drive is in use.
CD-eject button: Press this button to release a CD from the drive.
Chapter 1. Introducing the IBM xSeries 235 Type 8671 server 9