5.2

Table Of Contents
4 Type the account password.
5 Click OK.
6 To add domain user accounts with privileges in other Active Directory domains in which you deploy
linked-clone pools, repeat the preceding steps.
7 Click Next to display the Storage Settings page.
What to do next
Enable virtual machine disk space reclamation and configure View Storage Accelerator for View.
Allow vSphere to Reclaim Disk Space in Linked-Clone Virtual Machines
In vSphere 5.1 and later, you can enable the disk space reclamation feature for View. Starting in vSphere 5.1,
View creates linked-clone virtual machines in an efficient disk format that allows ESXi hosts to reclaim
unused disk space in the linked clones, reducing the total storage space required for linked clones.
As users interact with linked-clone desktops, the clones' OS disks grow and can eventually use almost as
much disk space as full-clone desktops. Disk space reclamation reduces the size of the OS disks without
requiring you to refresh or recompose the linked clones. Space can be reclaimed while the virtual machines
are powered on and users are interacting with their desktops.
Disk space reclamation is especially useful for deployments that cannot take advantage of storage-saving
strategies such as refresh on logoff. For example, knowledge workers who install user applications on
dedicated desktops might lose their personal applications if the desktops were refreshed or recomposed.
With disk space reclamation, View can maintain linked clones at close to the reduced size they start out with
when they are first provisioned.
This feature has two components: space-efficient disk format and space reclamation operations.
In a vSphere 5.1 or later environment, when a parent virtual machine is virtual hardware version 9 or later,
View creates linked clones with space-efficient OS disks, whether or not space reclamation operations are
enabled.
To enable space reclamation operations, you must use View Administrator to enable space reclamation for
vCenter Server and reclaim VM disk space for individual desktop pools. The space reclamation setting for
vCenter Server gives you the option to disable this feature on all desktop pools that are managed by the
vCenter Server instance. Disabling the feature for vCenter Server overrides the setting at the desktop pool
level.
The following guidelines apply to the space reclamation feature:
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It operates only on space-efficient OS disks in linked clones.
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It does not affect View Composer persistent disks.
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It works only with vSphere 5.1 or later and only on desktops that are virtual hardware version 9 or
later.
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It does not operate on full-clone desktops.
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It operates on virtual machines with SCSI controllers. IDE controllers are not supported.
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It operates on Windows XP and Windows 7 desktops only. It does not operate on Windows 8 desktops.
View Composer Array Integration is not supported in pools that contain virtual machines with space-
efficient disks. View Composer Array Integration uses vStorage APIs for Array Integration (VAAI) native
NFS snapshot technology to clone virtual machines.
VMware Horizon View Installation
98 VMware, Inc.