This property is used to specify the name of a differencing VHD (also known as a child VHD) file. A differencing VHD is similar to a dynamically expanding VHD but contains only the modified disk blocks of the associated parent VHD. The parent VHD is read only, so you must modify the differencing VHD. The differencing VHD file is created in the same folder as the parent VHD file, so only the file name is specified in this property. This property is only valid for the MDT New Computer deployment scenario.

Note   All parent VHD files created by MDT are stored in the VHD folder in the root of the parent drive.

This property is commonly set using a task sequence step created using the Create Virtual Hard Disk (VHD) task sequence type. You can override the value the Create Virtual Hard Disk (VHD) task sequence step sets by configuring this property in CustomSettings.ini.

Note   To configure this property in CustomSettings.ini, you must add this property to the Properties line in CustomSettings.ini.

For related properties that are used with VHD files, see:

·     VHDCreateFileName

·     VHDCreateSizeMax

·     VHDCreateSource

·     VHDCreateType

·     VHDDisks

·     VHDInputVariable

·     VHDOutputVariable

·     VHDTargetDisk

 

Property configured by			Property applies to
BootStrap.ini			LTI	˜
CustomSettings.ini	˜
MDT DB			ZTI

 

Value	Description
filename	Specifies the name of the differencing VHD file, which is located in the same folder as the parent VHD file Note   The differencing VHD file cannot have the same name as the parent VHD file.
RANDOM	Automatically generates a random name for the differencing VHD file, which is located in the same folder as the parent VHD file

 

Example
[Settings] Priority=Default   [Default] VHDCreateDiffVHD=Win7Diff_C.vhd VHDInputVariable=VHDTargetDisk

 

Related Topics

Property Definition