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MPCMM0001 Chassis Management Module Software Technical Product Specification 123
Front Panel LEDs
Front Panel LEDs 12
The CMM has nine LEDs on the front panel of each unit for displaying system health, hot swap
state, and other information. They include:
• Three system health LEDs
• One CMM Health LED
• One CMM HotSwap State LED
• Four User-Definable LEDs (A-D)
For more information on CMM LEDs refer to the Intel® NetStructure™ MPCMM0001 Hardware
Technical Product Specification.
12.1 LED Types and States
The CMM can retrieve and, in some cases, set values for LEDs on the CMM, fan trays, PEMs, and
blades in the chassis. Refer to Section 8, “The Command Line Interface (CLI)” on page 71 for
more information. The following tables list the default values for the LEDs on the CMM. Other
locations will likely have different LED properties that can be retrieved through the CMM.
12.1.1 Alarm LEDs
There are three alarm LEDs on the CMM corresponding to the minor (!), major (!!) and critical
(!!!) alarm states. The LEDs are amber when on. Each LED has the following meaning:
The Alarm LEDs on the CMM can be turned on or off using the minorled, majorled, and criticalled
CMM dataitems. This also affects the relay contacts. The value is 1 or 0. For example, the
command to turn the criticalled off is:
cmmset -d criticalled -v 0
Table 51. System Health LED States
LED (Symbol) Status Description
Minor Alarm
(!)
Off No Minor Alarm active
On Minor Alarm active
Flashing Minor Alarm active, but silenced
Major Alarm
(!!)
Off No Major Alarm active
On Major Alarm active
Flashing Major Alarm active, but silenced
Critical Alarm
(!!!)
Off No Critical Alarm active
On Critical Alarm active
Flashing Critical Alarm active, but silenced