5.2

n
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 affect different linked clones.
n
Decide whether to force all users to log off as soon as the operation begins or wait for each user to log off
before rebalancing that user's desktop.
If you force users to log off, View Manager notifies users before they are disconnected and allows them
to close their applications and log off.
If you force users to log off, the maximum number of concurrent rebalance operations on desktops that
require logoffs is half the value of the Max concurrent View Composer maintenance operations setting.
For example, if this setting is configured as 24 and you force users to log off, the maximum number of
concurrent rebalance operations on desktops that require logoffs is 12.
n
Verify that provisioning for the pool is enabled. When pool provisioning is disabled, View Manager stops
the desktops from being customized after they are rebalanced.
n
If your deployment includes replicated View Connection Server instances, verify that all instances are the
same version.
Procedure
1 In View Administrator, click Inventory > Pools.
2 Select the pool to rebalance by double-clicking the pool ID in the left column.
3 Choose whether to rebalance the whole pool or selected desktops.
Option Action
To rebalance all desktops in the pool
On the selected pool's page, click the Settings tab.
To rebalance selected desktops
a On the selected pool's page, click the Inventory tab.
b
Select the desktops to rebalance.
4
Click View Composer > Rebalance.
5 Follow the wizard instructions to rebalance the linked-clone desktops.
The linked-clone desktops are refreshed and rebalanced. The OS disks are reduced to their original size.
In View Administrator, you can monitor the operation by clicking Inventory > Pools, selecting the pool ID,
and clicking the Tasks tab. You can click Cancel Task, Pause Task, orResume Task to terminate a task, suspend
a task, or resume a suspended task.
Rebalancing Linked Clones Among Logical Drives
A desktop rebalance operation evenly redistributes linked-clone desktops among available logical drives. It
saves storage space on overloaded drives and ensures that no drives are underused.
When you create large linked-clone desktop pools and use multiple Logical Unit Numbers (LUNs), the space
might not be used efficiently if the initial sizing was inaccurate. If you set an aggressive storage overcommit
level, the linked clones can grow quickly and consume all the free space on the datastore.
When the virtual machines use 95% of the space on the datastore, View Manager generates a warning log entry.
The rebalance also refreshes the linked clones, reducing the size of their OS disks. It does not affect View
Composer persistent disks.
Apply these guidelines to desktop rebalances:
n
You can rebalance dedicated-assignment and floating-assignment pools.
VMware Horizon View Administration
258 VMware, Inc.