The types of machines that create profiles affect your configuration decisions. The primary factors are whether machines are persistent or provisioned, and whether they are shared by multiple users or dedicated to just one user.
Persistent systems have some type of local storage, the contents of
which can be expected to persist when the system turns off.
Persistent systems may employ storage technology such as storage
area networks (SANs) to provide local disk mimicking.
In contrast, provisioned systems are created "on the fly" from a base disk and
some type of identity disk. Local storage is usually mimicked by a
RAM disk or network
disk, the latter often provided by a SAN with a highspeed
link. The provisioning technology is generally Provisioning
Services or Machine Creation Services (or a third-party
equivalent). Sometimes provisioned systems have persistent local
storage, which may be provided by Personal vDisks; these are classed as persistent.
Together, these two factors define the following machine types:
The following Profile management policy settings are suggested guidelines for the different machine types. They work well in most cases, but you may want to deviate from these as your deployment requires.
Note: In XenDesktop deployments, Delete locally cached profiles on logoff, Profile streaming, and Always cache are enforced by the auto-configuration feature.