Server User Manual

ESX Server 3 and VirtualCenter Installation Guide
34 VMware, Inc.
For example,youpurchaseESX ServerlicensesfortenprocessorsandVMotionlicenses
forsixprocessors.Youcanthendeploythoselicensesonanyofthefollowing
combinationsofservers:
 ESX Serveronfive2‐processorhosts.EnableVMotiononthreehosts.
 ESX Serveronthree2‐processorhostsandone4‐processorhost.EnableVMotion
onthree2‐processorhosts,oronone2‐processorhostanda4‐processorhost.
 ESX Serverontwo4‐processorhostsandone2‐processorhost.EnableVMotionon
one4‐processorhostandone2‐processorhost.
 ESX Serveronone8‐processorhostandone2‐processorhost.VMotionbetween
thesetwohostscannotbeenabledunlessyoupurchaseanadditional4‐processor
VMotionlicense.
Specialconsiderationsinclude:
 Dual‐coreandquad‐coreprocessors,suchasIntelx86processorsthatcombinetwo
orfourindependentcentralprocessingunitsonasinglechip,countasone
processor.
 Youcannotpartiallylicenseamultiprocessorhost.For example,a4‐CPUhost
requiresalicensewiththecapacityforfourprocessors.
 Single‐processorlicensingissupportedforserver‐basedlicenses.Ingeneral,for
server‐basedlicensing,checkoutoflicensesinoddquantitiesissupported.
However,host‐basedfilescannotbegeneratedwithoddquantities.Theymustbe
generatedinmultiplesoftwo.
Thefollowingfeaturesarelicensedonaper‐processorbasis:
 ESX Server–Topoweronavirtualmachine,ahostmusthavelicensingona
per‐processorbasis.Thismeansadual‐processorhostrequirestwomatching
ESX Serverlicenses.Afour‐processormachinerequiresfourmatchingESX Server
licenses.See “ESX Server 3Editions”onpage 28.
 VMwareConsolidatedBackup(VCB)–ToleveragethenewConsolidated
Backupcapabilities—andbackupofallvirtualmachinesrunningonanESX Server
host—aVCBlicensekeymustbeavailableforeachprocessorwithinthathost.
See theVirtualMachineBackupGuideforadescriptionofthisfeature.
 VirtualCenterAgentforESX Server–ThisagentisinstalledonanESX Server
hostwhenitisaddedtoyourVirtualCenter Server.Youmusthaveoneagent
licensekeyforeachESX Serverprocessortobeaddedtoyour
VirtualCenter Server.