Intel MPCMM0001 Uživatelský manuál Strana 135

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MPCMM0001 Chassis Management Module Software Technical Product Specification 135
Fan Control and Monitoring
modes. The user may change to this mode with the following command:
cmmset –l fantrayN -d control –v emergencyshutdown
Where:
N: The number of the fan tray being addressed.
16.6.4 User Initiated Mode Change
To change the control mode of a fantray, the user may use the command:
cmmset –l fantrayN -d control –v [ CMM | fantray | EmergencyShutdown |
defaultcontrol]
N: The number of the fan tray being addressed.
CMM: Sets the fan tray to CMM fan tray control mode.
fantray: Sets the fan tray to local fan tray control mode.
EmergencyShutdown: Sets the fan tray to Emergency Shutdown mode.
deafultcontrol: Sets the fan tray to the default control mode.
If the user selects the defaultcontrol value the current control mode will be the default control
mode.
16.6.5 Automatic Mode Change
There is only one scenario that will cause a fantray’s current control mode to change automatically.
This is if the fantray is in the Fantray Control Mode and the Cooling Manager receives an asserted
temperature event. In this case we do not want the fantray controlling itself. We want the Cooling
Manager to immediately increase the fantray’s current cooling level. Therefore the Cooling
Manager will switch the current cooling mode of all fantrays out of the fantray control mode and
into the CMM control Mode. The fantrays will stay in the CMM Control Mode until the user
specifies otherwise. If scenario occurs a SEL event will be logged and a SNMP Trap will be
dispatched.
16.7 Getting Temperature Statuses
There are two commands for getting temperature statuses.
To retrieve the cooling level assigned to the normal status for fantrayN.
cmmget –l fantrayN -d normallevel
To retrieve the cooling level assigned to the minor status for fantrayN.
cmmget –l fantrayN -d minorlevel
N: The number of the fan tray being addressed.
The user is not able to set the majorlevel or the criticallevel and therefore he will not be able to
retrieve these values either.
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