VMware provides a default set of policy (snapvol.cfg) and script files with the App Volumes Agent. In certain cases, you might need to add custom policies for application compatibility reasons. This information helps you understand the Default and Custom folders.


The policy and script files in the Default folder are factory-shipped and get installed with the App Volumes Agent. These files are located in the base virtual machine at \CloudVolumes\Agent\Config\Default.

Important: Default policy ( snapvol.cfg) and script files must not be modified. These files are overwritten during the App Volumes Agent upgrade.


The policy files and scripts must be created in the Custom folder, which resides in the App Volumes Agent installation folder. Customization of any policy and script files are applicable to all attached volumes.

Policy and script files in the Custom folder are preserved during an App Volumes Agent upgrade.

The following table shows the Custom folder structure containing the policy and script files:
Folders Description
\Custom custom policies with global scope that apply to all volumes attached
\Custom\system custom policies applicable to System Writable Volume
\Custom\provisioning custom policies applicable during App packaging
\Custom\app custom policies applicable to all App packages

virtualize and virtualize_registry policy rules are not supported in the Custom policies.