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Chapter 2. Power, controls, and indicators
Use this information to view power features, turn on and turn off the blade server, and view the functions
of the controls and indicators.
Blade server controls and LEDs
Use this information for details about the controls and LEDs on the blade server.
The following illustration identifies the buttons and information LEDs on the blade-server control panel.
Power LED
Activity LED
Location LED
Information LED
Fault LED
Power-on LED: This green LED indicates the power status of the blade server in the following manner:
• Flashing rapidly: While the service processor in the blade server is initializing and synchronizing with
the management module, the power-on LED flashes rapidly, and the power-control button on the
blade server does not respond. This process can take approximately two minutes after the blade
server has been installed. If the LED continues to flash rapidly, the blade server might not have power
permissions assigned to it through the Advanced Management Module, the BladeCenter unit does not
have enough power to turn on the blade server, or the service processor (IMM) on the blade server is not
communicating with the Advanced Management Module.
• Flashing slowly: The blade server has power supplied and is ready to be turned on.
• Lit continuously: The blade server has power and is turned on.
Activity LED: When this green LED is lit, it indicates that there is activity on the external storage device
or network.
Location LED: The system administrator can remotely turn on this blue LED to aid in visually locating the
blade server. When this LED is lit, the location LED on the BladeCenter unit is also lit. The location LED can
be turned off through the Advanced-Management-Module Web interface or through IBM® Director Console.
For more information about the Advanced-Management-Module Web interface, see "" on page . For more
information about IBM® Director, see the documentation on the IBM® Director CD that comes with the
server, or visit the IBM® Director Information Center at "" on page .
Information LED: When this amber LED is lit, it indicates that information about a system event in the
blade server has been placed in the Advanced-Management-Module event log. The information LED
can be turned off through the Advanced-Management-Module CLI, SNMP, or Web interface or through
IBM® Director Console. For more information about the Advanced-Management-Module Web interface,
see http://www.ibm.com/systems/management/. For more information about IBM® Director, see the
© Copyright Lenovo 2012, 2015
Power
button
NMI button
KVM select
button/LED
Media-tray select
button/LED
11
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