Increasing the size of a virtual disk

Last Updated : Jun 10, 2026 |

About this task

Each virtual disk holds one or more disk volumes. Before you can increase the size of a disk volume, you must first increase the size of the host disk to provide the required disk space.

This procedure describes how to adjust the size of a virtual disk in the Virtualization Enabled (VE) environment. The VE environment uses the standard VMware infrastructure facilities.

Before you begin

  • Ensure that the system layer on the virtual machine has been upgraded to the current release. You can verify this using the sys versions command.

  • Delete all snapshots from the virtual machine. You cannot adjust disk sizes while snapshots exist.

  • Determine the disk volume to be increased in size.

  • Determine the disk number that hosts the disk volume. You can use the sys volmgt --summary command for more information.

Procedure

  1. If the virtual machine is installed and running, log in to the system, and shut down the operating system by running the following command: 
    sudo shutdown -h now
  2. Stop your virtual machine if it is still running.
  3. Click Edit Settings.
  4. From the Hardware tab, select the hard disk to be enlarged.
  5. In Disk Provisioning, enter a higher value for the disk size and select the appropriate unit of measure.
  6. Click OK.
  7. Power on the virtual machine.

Next Steps

Increase the size of the disk volume.