Configuring the VMDg or VMNSDg resources for the disk groups

Last published : Aug 05, 2026
Configuration involves the following tasks:
  • Create the VMDg (in case of shared storage) or VMNSDg (in case of non-shared storage) resources in the RVG service group by copying them from the application service group.
  • If you are creating a DR configuration in a non-shared storage environment, modify the DGGuid attribute for the new VMDg or VMNSDg resource in the RVG service groups at both the sites (primary site and the disaster recovery site) separately to ensure the desired failover behavior.
Configure the following attributes in the application service group for the MountV resource.
Resources for the disk group for the application system files:
  • VMDg Resource Name
  • Volume Name
To create a VMDg or VMNSDg resource for the disk group
  1. In the VCS Cluster Explorer window, select the application service group in the left pane.
  2. On the Resources tab, right-click the VMDg or VMNSDg resource for the disk group, and click Copy > Self.
  3. In the left pane, select the RVG service group.
  4. On the Resources tab, right-click in the blank resource display area and click Paste.
  5. In the Name Clashes window, change the name of the VMDg or VMNSDg resource for the RVG service group.
  6. Click OK.
Modify the DGGuid attribute for the new disk group resource.
See Modifying the DGGuid attribute for the new disk group resource in the RVG service group.
To modify the MountV resources in the application service group
  1. In the VCS Cluster Explorer window, select the application service group in the left pane.
  2. In the Resources tab display area, right-click the MountV resource for the application and select View > Properties View.
  3. In the Properties View window, verify that the Volume Name attribute is the volume created for the application.
  4. In the same Properties View window, for the VMDg Resource Name attribute, clickEdit.
  5. In the Edit Attribute window, modify the VMDGResName scalar value to be the VMDg (in case of shared storage) or VMNSDg (in case of non-shared storage) resource that was just created in the RVG service group.
  6. Close the Properties View window.
  7. Repeat this procedure for any additional MountV resources for the application.
To enable the VMDg or VMNSDg resource in the RVG service group
  1. In the left pane, select the RVG service group.
  2. In the Resources tab display area, right-click the VMDg or VMNSDg resource and select Enabled.