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v Error: This amber LED is lit and stays lit when an error has been detected in the
blower. The system error LED on the BladeCenter system-status panels is also
lit.
KVM (keyboard, video, mouse) module indicators and
input/output connectors
The KVM module is a hot-swap module that is installed on the rear of the
BladeCenter T unit and is held in place by captive thumbscrews. This module
contains two USB connectors for the keyboard and mouse, a video connector, and
a system-status panel.
Thumbscrew
Keyboard
Mouse
System-status LEDs: These LEDs provide status information for the BladeCenter T
unit.
v Power: When continuously lit, this green LED indicates the presence of power in
the BladeCenter T unit. The LED turns off when the power source is interrupted.
Attention:
If the power LED is off, it does not mean electrical power is not
present in the BladeCenter T unit. The LED might be burned out. To remove all
electrical power from the BladeCenter T unit, you must disconnect all power
cords from the rear of the BladeCenter T unit.
v Location: This blue LED is for system identification. A system administrator or
servicer uses this LED to locate a specific BladeCenter T unit for service or
repair. You can turn off the location LED through the web interface or a remote
management console.
Alarm LEDs: These LEDs provide alarm notifications for the BladeCenter T unit.
v CRT (Critical alarm, amber (default) or red): When continuously lit, this LED
indicates the presence of a critical system fault. The system comes with amber as
the default. See the documentation that comes with the management module for
information on setting the color of this LED. A critical system fault is an error or
event that is unrecoverable. In this case, the system cannot continue to operate.
An example is the loss of a large section of memory that causes the system to be
incapable of operating.
v MJR (Major alarm, amber (default) or red): When continuously lit, this LED
indicates the presence of a major system fault. The system comes with amber as
the default. See the documentation that comes with the management module for
information on setting the color of this LED. A major system fault is an error or
event that has a discernible impact to system operation. In this case, the system
can continue to operate but with reduced performance. An example is the loss of
one of two mirrored disks.
v MNR (Minor alarm, amber): When continuously lit, this LED indicates the
presence of a minor system fault. A minor system fault is an error or event that
has little impact to system operation. An example is a correctable ECC error.
Video
MJR
CRT
Power LED
Location LED
MNR
Minor (MNR) alarm LED
Major (MJR) alarm LED
Critical (CRT) alarm LED
Chapter 1. General information
13
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