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documentation on the IBM® Director CD that comes with the server, or visit the IBM® Director Information
Center at "" on page .
Fault LED: When this amber LED is lit, it indicates that a system error has occurred in the blade server. The
blade-error LED turns off only after the error is corrected.
Power-control button: Press this button to turn on or turn off the blade server.
Note: The power-control button has effect only if local power control is enabled for the blade server. Local
power control is enabled and disabled through the Advanced-Management-Module Web interface.
NMI button (recessed): The nonmaskable interrupt (NMI) dumps the partition. Use this recessed button
only as directed by IBM Support.
Note: You can also send an NMI event to the selected blade server remotely using the AMM. For more
information, see the BladeCenter Advanced Management Module User's Guide.
Keyboard/video/mouse (KVM) select button: Press this button to associate the shared BladeCenter unit
keyboard port, video port, and mouse port with the blade server. The LED on this button flashes while the
request is being processed and then is lit when the ownership of the keyboard, video, and mouse has
been transferred to the blade server. It can take approximately 20 seconds to switch the keyboard, video,
and mouse control to the blade server.
Using a keyboard that is directly attached to the Advanced-Management-Module, you can press keyboard
keys in the following sequence to switch KVM control between blade servers instead of using the KVM
select button:
NumLock NumLock blade_server_number Enter
blade_server_number is the two-digit number of the blade-server bay in which the blade server is
installed. A blade server that occupies more than one blade-server bay is identified by the lowest bay
number that it occupies.
If there is no response when you press the KVM select button, you can use the
Advanced-Management-Module Web interface to determine whether local control has been disabled on the
blade server. See "" on page for more information.
Notes:
1. The operating system in the blade server must provide USB support for the blade server to recognize
and use the keyboard and mouse, even if the keyboard and mouse have PS/2-style connectors.
2. If you install a supported MicrosoftWindows operating system on the blade server while it is not the
current owner of the keyboard, video, and mouse, a delay of up to 1 minute occurs the first time that
you switch the keyboard, video, and mouse to the blade server. All subsequent switching takes place in
the normal KVM switching time frame (up to 20 seconds).
Media-tray select button: Press this button to associate the shared BladeCenter unit media tray
(removable-media drives) with the blade server. The LED on the button flashes while the request is being
processed and then is lit when the ownership of the media tray has been transferred to the blade server. It
can take approximately 20 seconds for the operating system in the blade server to recognize the media tray.
If there is no response when you press the media-tray select button, you can use the
Advanced-Management-Module Web interface to determine whether local control has been disabled on
the blade server.
Note: The operating system in the blade server must provide USB support for the blade server to recognize
and use the removable-media drives.
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BladeCenter HS22 Blade ServerInstallation and User's Guide
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