Product Documentation

New in this release

Oct 05, 2016

Provisioning Services provides the following new features at this release:

  • Proxy between PVS and XenServer
  • Linux VDA streaming
  • Enhanced security


You must use the most recent version of the Citrix License server to get the latest features. When upgrading from an existing version of Provisioning Services to the newest version of Provisioning Services, the most recent version of the license server is usually available with the product software. If you do not upgrade to the latest version of the license server, the product license will enter the 30 day grace period.

Refer to the fixed and known issues for additional information about this release of Provisioning Services.

XenServer proxy

Provisioning Services (PVS) provides functionality for a proxy between XenServer and PVS. This proxy, referred to as vDisk caching, improves how XenServer and PVS interact, which enhances the performance and resiliency for XenDesktop and XenApp deployments.

For more information, see Configure vDisk caching.


The proxy feature is only supported on XenServer with the proxy capability installed. UI changes only occur when you are using that type of hypervisor. To use this feature, an optional package must be installed on the XenServer host(s). There are no additional dependencies on the installer.

For more information on the relationship between XenServer and PVS, refer to the blog XenServer and PVS: Better Together.

Linux VDA streaming

With Citrix’s introduction of the Linux Delivery Agent (for both RHEL/CentOS and SUSE distributions), you can create Linux virtual desktops.  The Linux Virtual Desktop is part of XenApp and XenDesktop, it extends the reach of IT to enable more use cases with CentOS support, Client drive mapping, provides options for 3D applications in the virtualization environment, supports publishing using XenApp and anonymous login, policy management, USB redirection and expands HDX 3D Pro support on Linux target devices.

At this release of Provisioning Services, you can now provision Linux virtual desktops directly in the XenDesktop environment.

Refer to the system requirements article for information about supported distributions and hypervisors.

Refer to the installation topic for instructions on using the GUI or CLI to install the Linux streaming feature.

Enhanced security

In previous releases, a vDisk could feasibly contain cached credentials containing domain information.  

This version of Provisioning Services introduces a security feature that automatically clears cached credentials from a vDisk which prevents the admin (cached) credentials being leaked to every instance of the VM.  Both the cached credentials, which are used when unlocking a workstation, and the cached credentials that are used when the DC (domain controller) is unavailable are cleared when a vDisk’s cache mode is changed from Private or Maintenance to a shared mode.

Enable (or disable) this security feature using the clearcachedisabled parameter. For example:

command 복사

mcli set disk clearcachedisabled

If clearcachedisabled=0, cache information is cleared when the vDisk mode is changed from private to standard.


This security feature is enabled by default when a new vDisk is created.

To view the current status of the cached credentials feature, access the vDisk Properties screen; the feature is enabled when the Cached secrets cleanup disabled field is selected, as illustrated in the image below:

localized image