Resizing disks in disk groups

Last published : Jun 19, 2026
The Management Server console lets you resize a disk in the disk group which is in the control of Storage Foundation. You can resize one or more disks in an existing disk group on the host. If a disk group contains only one disk, you cannot perform the resize disk operation.
A disk that is a part of a Storage Foundation disk group can be resized, if there are no volumes using the disk. The disks belonging to a deported or a foreign disk group cannot be resized.
To perform this task, your user group must be assigned the Admin role on the host or the Server perspective. The permission on the host may be explicitly assigned or inherited from a parent Organization.
To resize a disk in a disk group
  1. In the Management Server console, go to the Server perspective and expand Manage in the left pane.
  2. Expand the Organization or Uncategorized Hosts to locate the host.
  3. Expand the host and then expand Disk Groups.
  4. Do one of the following:
    • Right-click on the disk group and select Resize Disk.
    • Select the required disk group and click on the Disks tab to locate the required disk on the host. Right-click on the disk and selectResize.
  5. If you launch the operation to resize a disk from the disk group, in the Disk Selection wizard panel, select the required disks from the list. To search for disks using one or more filter criteria, click Edit. Click** Next**.
See Select Disks panel options.
See Filter Criteria panel options.
  1. In the Resize Disk wizard panel, specify an option to resize the disk. Click Next.
See Resize Disk panel options.
  1. In the Resize Disk Summary wizard panel, verify that the details of the disk being resized. Click Finish.
  2. In the Result panel, verify that the disk has been resized successfully.
See About managing disk groups.