IBM HS40 manual Controls and LEDs

Controls and LEDs

This section describes the controls and light-emitting diodes (LEDs) on the blade server. You must open the door to access the controls and LEDs.

Note: The control panel door is shown in the closed (normal) position in this

illustration. You must open the control panel door to access the power-control button.

CD/diskette/USB select button

Blade-error

LED

Information

LED

Location

LED

Activity

LED

Power-on

LED

CD

Keyboard/ mouse/ video select button

Power-control button

CD/diskette/USB select button: Press this button to associate the CD-ROM drive, diskette drive, and USB port with this blade server. The LED on this button flashes while the request is being processed, then is steady when the ownership of the CD-ROM drive, diskette drive, and USB port has been transferred to this blade server. It can take approximately 20 seconds for the operating system in this blade server to recognize the CD-ROM drive, diskette drive, and USB port.

The operating system in the blade server must provide USB support for the blade server to recognize and use the CD-ROM drive, diskette drive, and USB port. The BladeCenter unit uses USB for internal communication with these devices. If there is no response when you press the CD/diskette/USB select button, you can use the management-module Web interface to see whether local control has been disabled on the blade server.

Keyboard/mouse/video select button: Press this button to associate the keyboard port, mouse port, and video port with this blade server. The LED on this button flashes while the request is being processed, then is steady when the ownership of the keyboard, mouse, and video has been transferred to this blade server. It can take up to 20 seconds to switch the keyboard, video, and mouse control to the blade server.

Although the keyboard that is attached to the BladeCenter unit is a PS/2®-style keyboard, communication with it is through the Universal Serial Bus (USB). The operating system in the blade server must provide USB support for the blade server to recognize and use the keyboard and mouse. The BladeCenter unit uses USB for internal communication with these devices. When you are running an operating system that does not have USB device drivers, the keyboard responds very slowly.

8BladeCenter HS40 Type 8839: Hardware Maintenance Manual and Troubleshooting Guide