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Information LED: When this amber LED is lit, it indicates that information about a
system error for the blade server has been placed in the management-module
event log. The information LED can be turned off through the Web interface of the
management module or through IBM Director Console.
Blade-error LED: When this amber LED is lit, it indicates that a system error has
occurred in the blade server. The blade-error LED will turn off after one of the
following events:
v Correcting the error
v Reseating the blade server in the BladeCenter unit
v Cycling the BladeCenter unit power
Power-control button: This button is behind the control panel door. Press this
button to turn on or turn off the blade server.
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 Web
interface of the management module.
Press the power button for 5 seconds to begin powering down the blade server.
NMI reset (recessed): The nonmaskable interrupt (NMI) reset dumps the partition.
Use this recessed button only as directed by IBM Support.
Power-on LED: This green LED indicates the power status of the blade server in
the following manner:
v Flashing rapidly: The service processor (BMC) is initializing the blade server.
v Flashing slowly: The blade server has completed initialization and is waiting for
a power-on command.
v Lit continuously: The blade server has power and is turned on.
Note: The enhanced service processor (BMC) can take as long as three minutes to
initialize after you install the BladeCenter JS12 blade server, at which point the
LED begins to flash slowly.
Activity LED: When this green LED is lit, it indicates that there is activity on the
hard disk drive or network.
Location LED: When this blue LED is lit, it has been turned on by the system
administrator to aid in visually locating the blade server. The location LED can be
turned off through the Web interface of the management module or through IBM
Director Console.
15
Chapter 2. Power, controls, indicators, and connectors
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