ESX QE450.2 Spezifikationen PDF herunterladen (Seite 236)

Basic System Administration

236 VMware, Inc.

SSE3 Considerations

WithintheIntelP4andAMDOpteronprocessorfamilies,VMwareplacesarestriction

betweenprocessorsthatdosupporttheSSE3instructionsandprocessorsthatdonot

supporttheSSE3instructionsbecausetheyareapplicationlevelinstructionsthat

bypassthevirtualizationlayer,andcouldcauseapplicationinstabilityifmismatched

aftera

migrationwithVMotion.

SSSE3 Considerations

WithintheIntelP4andIntelCoreprocessorfamilies,VMwareplacesarestriction

betweenprocessorsthatdosupporttheSSSE3instructionsandprocessorsthatdonot

supporttheSSSE3instructionsbecausetheyareapplicationlevelinstructionsthat

bypassthevirtualizationlayer,andcouldcauseapplicationinstabilityifmismatched



afteramigrationwithVMotion.

Networking Requirements

1VMotionrequiresaGigabitEthernetnetworktoensurerapidmigration:

 Adedicatednetworkisrecommendedtokeepvirtualmachinememorystate

secure.

 VMotionrequiresaprivateGigabitEthernetmigrationnetworkbetweenallof

theVMotion‐enabledmanagedhosts.WhenVMotionisenabledona

managedhost,configureauniquenetworkidentityobjectforthemanaged

hostandconnectittotheprivatemigrationnetwork.

 Twohostswithcross‐connectedGigEcardscanbeusedfordemopurposes.

2Virtualmachinesmusthaveaccesstothesamesubnetsonthesourceand

destinationESXServerhosts.

3NetworklabelsforeachvirtualNICmustbecreatedthroughtheESXServer

configurationsettings:

 Networklabelsareglobalacrossdatacenters.

 VMotionautomaticallymapsvirtualmachinestoappropriatevirtualNICs

basedonnetworklabels.

 ForESXServer2.xhosts,networklabelscanbeconfiguredthroughthe

Web‐basedVMwareManagementInterface.

OTEVMwareisworkingonmaintainingVMotioncompatibilityacrossthewidest

rangeofprocessorsthroughpartnershipswithprocessorandhardwarevendors.For

additionalinformation,checktheVMwareKnowledgeBase.

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ESX QE450.2 Spezifikationen Seite 236