ESX QE450.2 Especificaciones descargar pdf (Pagina 234)

Basic System Administration

234 VMware, Inc.

MigrationwithVMotionhappensinthreestages:

1WhenthemigrationwithVMotionisrequested,VirtualCenterverifiesthatthe

existingvirtualmachineisinastablestatewithitscurrenthost.

2Thevirtualmachinestateinformation(thatis,memory,registers,andnetwork

connections)iscopiedtothetargethost.

3Thevirtualmachineresumes

itsactivitiesonthenewhost.

Ifanyerroroccursduringmigration,thevirtualmachinesreverttotheiroriginalstates

andlocations.

VMotion Requirements

TobeconfiguredforVMotion,eachhostintheclustermustmeetthefollowing

requirements.

Shared Storage

Ensurethatthemanagedhostsusesharedstorage.Sharedstorageistypicallyona

storageareanetwork(SAN),butcanalsobeimplementedusingiSCSIandNASshared

storage.SeetheVMwareSANConfigurationGuideforadditionalinformationonSAN

andtheESXServer3ConfigurationGuideorESXServer3i

ConfigurationGuidefor

informationonothersharedstorage.

Shared VMFS Volume or NAS Storage

ConfigureallmanagedhoststousesharedVMFSvolumesortobelocatedonNAS

storage.IfusingsharedVMFSvolumes:

 PlacethedisksofallvirtualmachinesonVMFSvolumesthatareaccessiblebyboth

sourceandtargethosts.

 EnsurethattheVMFSvolumeissufficientlylargetostoreallvirtualdisksforyour

virtualmachines.

CPU Compatibility

Makesurethatthesourceanddestinationhostshaveacompatiblesetofprocessors.

VMotiontransferstherunningarchitecturalstateofavirtualmachinebetween

underlyingVMwareESXServersystems.VMotioncompatibilityrequiresthatthe

processorsofthetargethostbeabletoresumeexecutionusingtheequivalent

instructionsthatthe

processorsofthesourcehostwereusingwhensuspended.

Processorclockspeedsandcachesizes,andthenumberofprocessorcorescanvary,but

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ESX QE450.2 Especificaciones Pagina 234