RadiSys ATCA-4616 Dokumentacja Pobierz pdf (Strona 74)

Changing Shelf Settings Using HPI

Overriding the cooling algorithm

SystemmanagerscancompletelyoverridetheShelfManager’scoolingalgorithmandusean

externalcoolingmoduletocontrolthefans.Theanalogcontrolforthefansis0x1400.The

possiblefanspeedvaluesforeachshelfare:

•ATCA‐6000:0to10

•ATCA‐6002:N/A.Thefansalwaysrunatfullspeedandarenotunderthecontrolofthe

ShelfManager.

•ATCA‐6006:0to15

•ATCA‐6014andATCA‐6016:0to15

Youmustsetthecontrolmodetomanualtooverridethesetting.Setthemodetoautomatic

toreturnthefanspeedtotheShelfManager’scontrol.

Tip:Tochangetheminimumfanspeed,seeSettingtheminimumfanspeedonpage 45.

Youcanoverridethecoolingalgorithm:

•UsingCLIcommands.Enter:

platform‐mgmt

controls

configurefan‐speed

Whenyouselectaspecificspeed,thecontrolmodeischangedtomanual.Whenyou

selecttheautooption,thefaniscontrolledbytheShelfManageragain.

•UsingtheHPIfunctionsaHpiE ventGet()toreceivetemperatureeventsautomaticallyand

theHPIfancontrolforeachfanresourcetocontrolfanspeeds.Fordetails,seeOverriding

thecoolingalgorithmwithanHPIapplicationonpage 75.

•UsingtheSNMPvariables:

saHpiCtrlAnalogMode.0xffffffff.<fan‐resourceID>.false.0x1400

saHpiCtrlAnalogState0xffffffff.<fan‐resourceID>.false.0x1400

fromtheHPI‐B0101‐MIBmodule.

1. Settheanalogcontrolmodeforthefantomanual(2).

2. Settheanalogcontrolstateforthefantothenewvaluerepresentingthefanspeed.

Donotsetthemodebacktoauto(1),unlessyouwanttoreturntotheShelfManager’s

coolingalgorithm.

•Usingthehpiappexampleapplicationinteractivelyorasaprogrammaticexamplefor

writingyourapplications.

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