Resizing disks in VMware Workstation

If you want to increase the size of a virtual machine (VM) in VMware Workstation, you can use the command line tool, vmware-vdiskmanager, from a command prompt. The command can be executed from the VMware Workstation folder under Program Files\VMware. The VM should be powered off.

The following command will increase the size of the virtual disk to 30 GB. In this case, the .vmdk file resides on a network share.

C:\Program Files\VMware\VMware Workstation>vmware-vdiskmanager -x 30GB "\\FILESERVER\folder-X\My Virtual Machines\testserver\testserver.vmdk"

This will work both on a disk where all space has been allocated and disk that are allowed to grow.