Specifications

Troubleshooting

119

c. Checkthe'DesiredPower'controlsonallFRUsinstalledonthatslot(parentand

managedFRUs)andcheckifthetotalexceedsthemaximumpowercapabilityofthe

slot.

6. IftheFRUisinM3,thecheckssuggestedinStep 5aboveallpass,andtheFRUalongwith

itsmanagedFRUs

isbelowtheslot'smaximumpowercapability,itispossiblethatthe

Shelf'stotalpowercapabilityisexceeded.Inthiscase,collectallShelfManagerlogsfrom

the/tmp/shmgr/folderandforwardthemtoRadisysTechnicalSupportforfurther

investigation.

Responding to a FRU not powered properly

Performthefollowingstepstoconfirm/correctthisindication:

1. CheckthattheFRUisinsertedcorrectlyandthatthehot‐swaplatchisintheclosed 

position.

2. Checkthebluehot‐swap(H/S)LEDontheFRUthatisnotpoweredcorrectly.TheLED

shouldbeblinkingwithshortblinksifitiswaitingtobeactivatedbytheShelfManager.

TheLEDshouldbeoffiftheShelfManagerisactivatingorhasalreadyactivatedtheFRU.

a. Ifthehot‐swapLEDremainsblinkingforalongtime,checkthehot‐swapstateofthe

FRU.Fordetails,seeOverridingthedefaultShMShot‐swapmechanismonpage 72.

b. Ifthehot‐swapLEDisoff,verifytheFRU’svoltagesensorreadingsarewithin

specifications.Iftheyareoutsidethespecifications,removeandre‐inserttheFRU.

3. CheckthatIPMIcommunicationstotheFRUareworkingproperly.

4. UsethehotswapCLIcommandtovirtuallyextractandre‐inserttheFRU.

Responding to power LED off in SDP

IndicationsarethattheI/OexpanderontheSDPthatcontrolstheGPOsforthealarmLEDsis

gettingreset.OtherthanthePowerLED,allotheralarmLEDs(includingtheaudiblealarms)

areperiodicallyupdatedbytheShelfManager,sotheywillallrecovertotheircorrectstates

followingthatoccurrence.However,thePowerLEDisnevertouchedafterATCA‐5014IPMC

initializationsoifitturnsoffinruntimethenitwillnevergetupdatedagain.Thatiswhyit

remainsoff.

InnewerATCA‐5014firmware,aninternalstatemachineconstantlymonitorstheGPOsonthe

I/OExpanderon

theSDPandifanyarefoundinanunexpectedstatesuchasPowerLEDoff,it

isrecoveredimmediately.ThiskindoflocalrecoverymechanismontheIPMCitself

guaranteesthattheLEDsontheSDPsynchronizeswiththeATCA‐5014.