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Chapter 6 Creating a Virtual Machine from a System Image or Another Virtual Machine
Microsoft Virtual PC and Virtual Server Virtual Hard Disks
AsofWorkstation7.0,aconvertedvirtualmachinecansharethesourceMicrosoft
virtualharddisk(.vhdfiles).ThismeansthattheVMwarevirtualmachinecanwrite
directlytotheoriginal.vhdfilesinsteadofVMwarevirtualharddisk(.vmdk)files.
IfyouselectSharesourcetheconvertedvirtualmachinecons
istsofaVMw
arevirtual
machineconfigurationfile(.vmxfile)andtheoriginal.vhdfile,whichremainsinits
originallocation.VMwaremodifiesthe.vhdfile,installingVMware‐specificvideo
drivers,devicedriversforvirtualnetworkcards,andsoon.TheVMware‐specific
driversreplacetheMicrosoftdrivers.
ShadowProtect and Backup Exec System Recovery Images
YoucanimportShadowProtectandBackupExecSystemRecoveryimages,butkeepthe
followinglimitationsinmind:
Dynamicdisksarenotsupported.
Allimagesforthebackupofamachineshouldbeinasinglefolder,withnoother
imagesplacedthere.
Allvolumesinthediskuptotheactiveandsystemvolumesmustbebackedup.
Forexample,ifadiskhasfourpartitions,1–4,withpartition2astheactivevolume
andpartition3asthesystemvolume,thebackupmustinclude1through3.
Ifitisanincrementalimage,upto16incrementalbackupsaresupported.
ForShadowProtect,imagesofsystemswithlogicaldrivesarenotsupportedifthe
logicaldriveisalsoasystemoractivevolume.
Appliances That Use Open Virtualization Format
Openvirtualizationformat(OVF)isaplatform‐neutral,secure,andportableformatfor
packaginganddistributingvirtualappliances.AlthoughOVFdoesnotrelyona
specificvirtualizationplatform,theConversionwizardsupportsonlyOVFappliances
thatuseVMwarevirtualharddisks(.vmdkfiles).
IntheConversionwizard,youcanselect.ovff
iles,whicharetheOVFequiv
alentofa
VMwarevirtualmachineconfigurationfile(.vmxfile),oryoucanselect.ovafiles
(openvirtualappliancefiles).An.ovafilestorestheconfigurationfileandvirtualhard
diskfiletogether,likea.zipfile,foreasydistribution.
WhenspecifyingthelocationoftheOVFappliance,yo
ucanbrowsetoadirectoryor
useaURLtodownloadtheappliancefromaWebserver.Youcanalsodownloadthe
appliancefromasecure(HTTPS)Webserver.
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