Specifications

4
Changing Shelf Settings Using HPI
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Whileinmanualmode,youcanalsoupdatetheDelayBeforeNextPowerOnforthat
hardwareaddress.Thisistheanalogstatevalueofthecontrol.Newvaluesareenteredin
tenthsofasecond.Tochangethedelaybeforethenextpoweron:
1. Brieflysetthecontrolinmanualmode.
2. Changetheanalogstatevalueofthecontrol.
3. Resetthecontroltoautomode.
RefertotheFRUactivationcontrolsectionoftheSAFMappingSpecificationformoredetails
onthiscontrol.
HPI FRU hot-swap policy cancellation
HPIprovidesanotheroverridefeatureforthesystemmanagertostopShelfManager
controlled activationofaFRUeveniftheassociatedFRUactivationcontrolisinautomode.
Forupto3secondsaftertheHPIhot‐swapeventfortheFRUresource’ stransitionto
SAHPI_HS_STATE_INSERTION_PENDINGisreceived,systemmanagerscanusetheHPIAPIcall
saHpiHotSwapPolicyCancel()toabortFRUactivationandholdtheFRUintheM2(Activation
Request)hot‐swapstate.ThesystemmanagercanlaterusetheHPIAPIcall
saHpiResourceActiveSet()toinitiateFRUActivationorsaHpiResourceInactiveSet()tofully
deactivatetheFRU,asdesired.
Similarly,forupto3secondsaftertheHPIhot‐swapeventfortheFRUresource’stransitionto
SAHPI_HS_STATE_EXTRACTION_PENDINGisreceived,systemmanagerscanusetheHPIAPI
callsaHpiHotSwapPolicyCancel()toabortFRUdeactivationandholdtheFRUintheM5
(DeactivationRequest)hot‐swapstate.ThesystemmanagercanlaterusetheHPIAPIcall
saHpiResourceActiveSet()totak etheFRUbacktotheactivestateor
saHpiResourceInactiveSet()toinitiatedeactivationoftheFRU,asdesired.
TheHPIhot‐sw apmanagementfunctions,alongwiththeFRUactivationcontrol,thusprovide
theATCAShelfManagermultiplemethodstooverridethedefaultShelfManager‐controlled
hot‐swapinsertion
orextractionofinte lligentFRUsfromtheshelf.