Blade server controls and LEDs
Use this information for details about the controls and LEDs on the blade server and IBM MAX5 expansion
blade.
The following illustration identifies the buttons and LEDs on the blade server control panel.
MT
Power button / LED
KVM select
button / LED
Media tray select
button / LED
Activity LED
Location LED
Information LED
Fault LED
NMI button
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. Refer to
the
BladeCenter Advanced Management Module User's Guide
for information pertaining to the proper
installation and configuration of Java, operating systems, and browsers that are supported for remote
access.
Power button/LED
When the blade server has power, press this button to turn on or turn off the blade server.
Note:
The power button works 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.
After the blade server is removed from the chassis, press this button to activate the system board LEDs
(light path diagnostics). See “System-board LEDs - BladeCenter HX5” on page 15 for more information.
This button is also the power LED. This green LED indicates the power status of the blade server:
•
Flashing rapidly
: The LED flashes rapidly for one of the following reasons:
– The blade server has been installed in a chassis. When you install the blade server, the LED flashes
rapidly for up to 90 seconds while the integrated management module (IMM) on the blade server is
initializing and synchronizing with the advanced management module.
– The blade server does not have power permissions assigned to it through the advanced
management module.
– The BladeCenter chassis does not have enough power to turn on the blade server.
– The IMM on the blade server is not communicating with the advanced management module.
•
Flashing slowly
: The blade server has power and is ready to be turned on.
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