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Horizon can be used to create three different types of clones: Full Clones, Linked Clones, and Instant Clones. Customization of each clone type requires different methods: Full Clone desktops can be customized using Microsoft SysprepLinked Clone desktops can be customized using either Microsoft Sysprep or VMware QuickPrepInstant Clone desktops can be customized using either Microsoft Sysprep or VMware ClonePrep This article discusses the main differences between VMware ClonePrep, QuickPrep and Microsoft Sysprep for the various clone types, allowing users to select the appropriate method. In terms of a appropriate pool type for a given use case, This is a design decision, please reference: https://techzone.vmware.com/resource/horizon for additional resources.For limits on pool size by type from Horizon 8 onwards, see VMware Configuration Maximums Note: In Horizon 8, Linked Clones are no longer available and have been replaced with Instant Clones.
Here's an overview of each customization method: QuickPrep is a VMware customization process run during a linked clone desktop deployment to personalize each desktop clone created from the parent image. QuickPrep is only available for linked clonesClonePrep is a VMware Customer process run during an instant clone desktop deployment to personalize each desktop clone created from the parent image. ClonePrep is only available for instant clonesMicrosoft Sysprep is a tool to deploy the configured operation system installation from a base image. The desktop can then be customized based on an answer script. Sysprep can be used for all types of clones - linked clones, instant clones, and full clones Sysprep can modify a larger number of configurable parameters than QuickPrep or ClonePrep, but QuickPrep and ClonePrep are faster During the initial startup of each desktop, ClonePrep and QuickPrep: Creates a new computer account in Active Directory for each desktop.Gives the instant-clone or linked-clone desktop a new name.Joins the desktop to the appropriate domain.For linked-clone desktop, QuickPrep optionally mounts a new volume that contains the user profile information. This table lists the main differences between the three customization methods. FunctionClonePrepQuickPrepSysprepUnique Client Machine ID (CMID)NoNoYesRemoving local accountsNoNoYesChanging Security Identifiers (SID)NoNoYesRemoving parent from domainNoNoYesChanging computer nameYesYesYesJoining the new instance to the domainYesYesYesGenerating new SIDNoNoYesLanguage, regional settings, date, and time customizationNoNoYesNumber of reboots001 (seal & mini-setup)Requires configuration file and SysprepNoNoYesKMS license activationYesYesNoPost customization script, pre-shutdown script YesYesNo For additional detail on CMID and the impact with KMS , Please reference Microsoft Key Management Server (KMS) count does not go up when using VMware ClonePrep or QuickPrep (2048742)For Linked Clones, the table below compares the effect of different View Composer operations on SIDs. CreationRefreshRecomposeRebalanceSysprepNew SIDs are generated for the DesktopsSIDs are preservedNew SIDs are generated for the DesktopsNew SIDs are generated for the DesktopsQuickPrepParent Image's SID are used for the DesktopsSIDs are preservedParent Image's SID is preserved unless parent Image is changedParent Image's SID is preserved unless parent Image is changed For Instant Clones and ClonePrep, the table below lists the effect of different operations on SIDs. CreationPush ImageRefresh / Resync on User LogoutSysprepNew SIDs are generated for the DesktopsNew SIDs are generated for the DesktopsSIDs are preservedClonePrepParent Image's SID is used for the DesktopsParent Image's SID is preserved unless parent Image is changedParent Image's SID is preserved For information on installing Sysprep tools, see Sysprep file locations and versions.For more information on the use of Sysprep and the Guest Customization wizard, see: The Customizing Guest Operating Systems section in the vSphere Virtual Machine Administration Guide. Page last reviewed: October 2023Next review due: December 2023
Sysprep file locations and versionsVMware QuickPrep と Microsoft Sysprep の相違点VMware QuickPrep 与 Microsoft Sysprep 的区别Troubleshooting Instant Clones in the Internal VM Debug Mode