7.0

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Scalability
A farm can have a variable number of RDS hosts. You can create farms with different numbers of RDS
hosts to serve user groups of different sizes.
Farms have the following properties:
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A Horizon 7 pod can have a maximum of 200 farms.
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A farm can have a maximum of 200 RDS hosts.
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The RDS hosts in a farm can run any supported version of Windows Server. See "System Requirements
for Guest Operating Systems" in the View Installation document.
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Automated farms support the View Composer recompose operation but do not support the refresh or
rebalance operation. You can recompose an automated farm but not a subset of the RDS hosts in the
farm.
IMPORTANT Microsoft recommends that you configure roaming profiles for users separately for each farm.
The profiles should not be shared between farms or users' physical desktops since profile corruption and
data loss may occur if a user is simultaneously logged in to two machines that load the same profile.
Preparing a Parent Virtual Machine for an Automated Farm
To create an automated farm, you must first prepare a parent virtual machine. View Composer uses this
parent virtual machine to create linked-clone virtual machines, which are the RDS hosts in the farm.
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Prepare an RDS Host Parent Virtual Machine on page 108
The View Composer service requires a parent virtual machine from which you generate a base image
for creating linked clones.
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Activating Windows on Linked-Clone RDS Hosts on page 110
To make sure that View Composer properly activates Windows Server operating systems on linked-
clone RDS hosts, you must use Microsoft volume activation on the parent virtual machine. The
volume-activation technology requires a volume license key.
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Disable Windows Hibernation in the Parent Virtual Machine on page 110
The Windows hibernation feature creates a hidden system file, Hiberfil.sys and uses this file to store
information that is needed for hybrid sleep. Disabling hibernation reduces the size of an instant clone's
or a View Composer linked clone's virtual disk.
Prepare an RDS Host Parent Virtual Machine
The View Composer service requires a parent virtual machine from which you generate a base image for
creating linked clones.
Prerequisites
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Verify that an RDS host virtual machine is set up. See Chapter 8, “Setting Up Remote Desktop Services
Hosts,” on page 95. To set up the RDS host, be sure not to use a virtual machine that was previously
registered to View Connection Server.
A parent virtual machine that you use for View Composer must either belong to the same Active
Directory domain as the domain that the linked-clone machines will join or be a member of the local
WORKGROUP.
Setting Up Desktop and Application Pools in View
108 VMware, Inc.