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.
Important:
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 Types of Hypervisor Connections and Machine Manager Configurations and Configure and Register the Machine Manager.
Procedure
Results
The Writable Volume file is expanded to the new size the next time the user logs in to the virtual machine.