Administration

2 Recompose the desktop pool again.
View Composer creates a base image from the snapshot and recreates the linked-clone OS disks.
View Composer persistent disks that contain user data and seings are preserved during the
recomposition.
Depending on the conditions of the incorrect recomposition, you might refresh or rebalance the linked
clones instead of or in addition to recomposing them.
N If you do not congure View Composer persistent disks, all recompositions delete user-
generated changes in the linked-clone virtual machines.
Rebalance Linked-Clone Virtual Machines
A rebalance operation evenly redistributes linked-clone virtual machines among available datastores.
You can also use the rebalance operation to migrate linked-clone virtual machines to another datastore. Do
not use vSphere Client or vCenter Server to migrate or manage linked-clone virtual machines. See “Migrate
Linked-Clone Virtual Machines to Another Datastore,” on page 159.
If possible, schedule rebalance operations during o-peak hours.
For guidelines, see “Rebalancing Linked Clones Among Logical Drives,” on page 158.
Prerequisites
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Familiarize yourself with the rebalance operation. See “Rebalancing Linked Clones Among Logical
Drives,” on page 158.
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Decide when to schedule the rebalance operation. By default, View Composer starts the operation
immediately.
You can schedule only one rebalance operation at a time for a given set of linked clones. You can
schedule multiple rebalance operations if they aect dierent linked clones.
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Decide whether to force all users to log o as soon as the operation begins or wait for each user to log
o before rebalancing that user's linked-clone desktop.
If you force users to log o, View noties users before they are disconnected and allows them to close
their applications and log o.
If you force users to log o, the maximum number of concurrent rebalance operations on remote
desktops that require logos is half the value of the Max concurrent View Composer maintenance
operations seing. For example, if this seing is congured as 24 and you force users to log o, the
maximum number of concurrent rebalance operations on remote desktops that require logos is 12.
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Verify that provisioning for the desktop pool is enabled. When pool provisioning is disabled, View
stops the virtual machines from being customized after they are rebalanced.
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If your deployment includes replicated View Connection Server instances, verify that all instances are
the same version.
Chapter 9 Managing View Composer Linked-Clone Desktop Virtual Machines
VMware, Inc. 157