IBM 86481BU User Guide - Page 20

Server controls, connectors, LEDs, and power This section describes the controls, connectors, and light-emitting diodes (LEDs) and how to turn the server on and off. Front view The following illustration shows the controls and LEDs on the front of the server. Ethernet link status LED Ethernet transmit/receive activity LED CD-ROM drive activity LED CD-eject button Diskette-eject button Hard disk drive activity LED Power-on LED Power-control button System error LED USB connectors Diskette drive activity LED CD-eject button Press this button to release a CD from the CD-ROM drive. CD-ROM drive activity LED When this LED is lit, it indicates that the CD-ROM drive is in use. Diskette-eject button Press this button to release a diskette from the diskette drive. Diskette drive activity LED When this LED is lit, it indicates that the diskette drive is in use. Hard disk drive activity LED When this LED is flashing, it indicates that a hard disk drive is in use. | Hot-swap hard disk drive activity LED (some models) | On SCSI hot-swap server models, each hot-swap drive has a hard disk | drive activity LED. When this green LED is flashing, it indicates that the | drive is in use. | Hot-swap hard disk drive status LED (some models) | On SCSI hot-swap server models, each hot-swap hard disk drive has an | amber status LED. If the status LED for a drive is lit continuously, it | indicates that the individual drive is faulty. The interpretation of a flashing | status LED depends on the SCSI controller that is connected to the | hot-swap drive, as follows: | When the drive is connected to an optional ServeRAID adapter, a slowly | flashing (one flash per second) status LED indicates that the drive is being 8 xSeries 226 Type 8648: User's Guide