Specifications

Chapter

Components and Subsystems

SAS/SATA controller

TheRTMincludesanLSILogicLSISAS1064E,whichisaSerialAttachedSCSI/SerialAdvanced

TechnologyAttachment(SAS/SATA)controller.ThecontrollerhasfourSAS/SATAportsthat

operateat3Gbpsandconnecttothesecomponents:

•TheRTM’soptionalharddiskdrive

•ThetworearSASports

•AnAMCinstalledintheCPM

ThecontrolleralsosupportsaPCIExpressinterface,whichcanbeusedasasinglex1orx4

lanetoconnecttheRTMtotheCPM.

ThecontrollersupportsanintegratedRAIDsolution,includingRAIDlevels0(diskstriping)and

1(mirroring).ThecontrolleriscompliantwithLSI’sFusion‐MPT(messagepassingtechnology)

architectureforinterfacecontrollers.ThearchitecturetakestheburdenoffthehostCPUby

managingtheI/Oandconsolidatinginterruptstoreducesystembusoverhead.TheSAS/SATA

controllerhasintegratedtransceiversthatperformtheSerDesconversionnecessaryforSAS

andSATAtransfers.

EachoftheeightSAS/SATAPHYsonthecontrolleriscapableof3.0Gbpsand1.5GbpsSASand

SATAlinkrates.ThecontrollersupportsSASversions1.0and1.1,aswellasSerialATArevision

1.0a.

ThecontrollersupportsPCIExpressreceiveandtransmitda taratesof2.5Gbpsineach

direction,yieldingatotalbandwidthof5.0Gbpsforeachfull‐duplexlane.Thecontroller

supportsPCIExpressrevision1.0a.

TheSAS/SATAcontrollersupportsa32‐bitexternalmemorybus.Itsexternalmemory

controllerblockprovidesinterfacestothe2MBflashROMand128KBNVSRAMthatare

installedontheRTMtosupplybootandRAIDjournalingfunctions.

Hard disk drive

TheRTMcansupportaSASorSATAharddiskdrive,whichcanbepurchasedfromRadisys.The

diskmustconformtothesmallformfactor(SFF),whichis2.5incheswideandupto15mmin

height.

Forinformationonsuitableharddiskdrives,seetheComponentCompatibilityReportinthe

AdvancedTCAdownloadssectionat

www.Radisys.com/downloads.Forinformationon

installingtheharddiskdrive,seeInstallingaharddiskdriveonpage11.