You can specify a new size for a Writable Volume using the App Volumes Manager and App Volumes increases the .vmdk file to the new size.


You cannot expand a Writable Volume if your Machine Manager is configured as VHD In-Guest Services. This feature is available only on vCenter Server. See Configuring a Machine Manager and Set Up the Machine Manager Connection.


  1. From the App Volumes Manager console, select Volumes > Writables.
  2. Select a Writable Volume from the list and click Expand.

    A Confirm Expand window is displayed.

  3. Enter the new size for the volume and click Expand.

    You must enter a size that is at least 1 GB greater than the current size of the Writable Volume.


The Writable Volume file is expanded to the new size the next time the user logs in to the virtual machine.