If you run out of disk space, you can increase the size of the disk. You can change the virtual device node and the persistence mode of virtual disk configuration of a virtual machine.


Power off the virtual machine.

Verify that you have the following privileges:
  • Virtual machine.Configuration.Modify device settings on the virtual machine.
  • Virtual machine.Configuration.Extend virtual disk on the virtual machine.
  • Datastore.Allocate space on the datastore.


  1. Click Virtual Machines in the VMware Host Client inventory.
  2. Right-click a virtual machine in the list and select Edit settings from the pop-up menu.
  3. On the Virtual Hardware tab, expand the hard disk to view all disk options.
  4. (Optional) To change the size of the disk, enter a new value in the text box and select the units from the drop-down menu.
  5. (Optional) To change the way that disks are affected by snapshots, select a disk mode from the Disk Mode drop-down menu.
    Option Description

    Dependent disks are included in snapshots.


    Disks in persistent mode behave like conventional disks on your physical computer. All data written to a disk in persistent mode are written permanently to the disk.


    Changes to disks in nonpersistent mode are discarded when you power off or reset the virtual machine. With nonpersistent mode, you can restart the virtual machine with a virtual disk in the same state every time. Changes to the disk are written to and read from a redo log file that is deleted when you power off or reset the virtual machine.

  6. Click Save.