Controls And Leds - IBM HS40 - BladeCenter - 8839 Installation And User Manual

v If the operating system stops functioning, you can press and hold the
v The management module can turn off the blade server.
Note: After turning off the blade server, wait at least 30 seconds for its hard disk
drives to stop spinning before you remove the blade server from the BladeCenter
unit.

Controls and LEDs

This section describes the controls and light-emitting diodes (LEDs) on your blade
server.
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: 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.
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BladeCenter HS40 Type 8839: Installation and User's Guide
Note: After turning off the blade server, wait at least 5 seconds before you press
the power-control button to turn on the blade server again.
power-control button for more than 4 seconds to turn off the blade server.
CD/diskette/USB
select button
CD
Blade-error
LED
Information
LED
Location
LED
Activity
LED
Power-on
LED
Power-control button
Keyboard/ mouse/
video select button