Product Documentation

IntelliCache with XenDesktop 7

Jul 17, 2013

Using IntelliCache, hosted VDI deployments are more cost-effective as this enables you to use a combination of shared storage and local storage. Performance is enhanced, and network traffic is reduced. The local storage caches the master image from the shared storage, which reduces the amount of reads on the shared storage. For shared desktops, writes to the differencing disks are written to local storage on the host and not to shared storage.

Your shared storage must be NFS if you are using IntelliCache.

Citrix recommends that you use a high performance local storage device to ensure the fastest possible data transfer.

To use IntelliCache you must enable it in both XenServer and XenDesktop.

To enable IntelliCache in XenServer

When installing XenServer, select Enable thin provisioning (Optimized storage for XenDesktop). Citrix does not support mixed pools of servers that have IntelliCache enabled and servers that do not.

For more information on using IntelliCache, see the XenServer and IntelliCache chapter in the XenServer Installation Guide available from the XenServer node.

To enable IntelliCache in XenDesktop

IntelliCache is disabled by default in XenDesktop. You can enable it when you are adding a host, provided the XenServer pool is XenServer 5.6 Service Pack 2 or later. You can update the setting only when the host is created; you cannot disable IntelliCache at a later date. The option to enable IntelliCache is not available if you are configuring a site using Quick Deploy.

  1. When you are adding a XenServer host and you are prompted for the type of storage to use, select Shared.
  2. Select Use IntelliCache to reduce load on the shared storage.