Upgrades

3 Manually restart the VMware Horizon View Message Bus Component service on all View Connection
Server hosts in the pod, or restart the View Connection Server instances.
After the services are restarted, the View Connection Server instances reconfigure the message security
mode on all desktops and security servers, changing the mode to Enhanced.
4 To monitor the progress in View Administrator, go to View Configuration > Global Settings.
On the Security tab, the Enhanced Security Status item will show Enhanced when all components
have made the transition to Enhanced mode.
When servers communicate with clients, servers will configure clients to use enhanced mode.
Tasks for Upgrading Desktop Pools to Use Space Reclamation
Starting with 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. Upgrading pools to use this feature involves
changing settings in vCenter Server, View LDAP, and pool settings and then recomposing the pool.
NOTE The space reclamation feature is not supported if your virtual machine desktops are hosted on
Virtual SAN datastores or Virtual Volumes datastores.
Although the space reclamation feature reduces the amount of disk space used for a virtual machine, it can
reclaim only space that is not used. This feature cannot reclaim disk space created by virtual machines that
have not been optimized. To optimize an operating system image, you can turn off Windows services such
as the indexer service, the defragmenter service, and restore points. For details, see the topics "Optimize
Windows Guest Operating System Performance," "Optimize Windows 7 and Windows 8 Guest Operating
System Performance," and "Optimizing Windows 7 and Windows 8 for Linked-Clone Desktops," in Setting
Up Desktop and Application Pools in View.
IMPORTANT Because this procedure involves recomposing the desktop pool, any changes that end users
have made to the operating system disk will be lost.
1 If all vCenter Server instances and ESXi hosts for the pool are not at VMware vSphere 5.1 or later,
upgrade them to 5.1 or later.
For instructions, see the VMware vSphere Upgrade Guide.
2 If all virtual machine desktops in the pool are not VMware vSphere 5.1 (virtual hardware version 9) or
later virtual machines, upgrade them.
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In the parent virtual machine, upgrade VMware Tools to the latest VMware vSphere 5.1 or later
version, and upgrade the virtual machine to the latest version, which must be virtual hardware
version 9 or later.
For instructions, see the VMware vSphere Upgrade Guide.
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Take a snapshot of the parent virtual machine. For instructions on taking snapshots, see the
vSphere Client online help.
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Use the snapshot of the parent virtual machine you just created to recompose the desktop pool. For
instructions on recomposing pools, click the Help button in View Administrator.
Recomposing the pool from a snapshot of an upgraded virtual machine is just one method of upgrading
all virtual machines in a linked-clone pool. You can also upgrade the virtual machines one by one.
3 Upgrade the disk format used for the virtual machines.
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On the View Connection Server host, use ADSIEdit to navigate to the server group that
corresponds to the pool, and change the value in the pae-UseSeSparseFormat field from 0 to 1.
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Recompose the desktop pool.
View Upgrades
54 VMware, Inc.