You can leverage an existing SDDC to use for recovery operations.

When you add a VMware Cloud on AWS SDDC, a cloud file system is attached to it. Both the SDDC and cloud file system must be in the same AWS availability zone (AZ). If no cloud file systems are available, then you can deploy a cloud file system.
Note: The recovery AZ, where all cloud file systems and recovery SDDCs exist, must support I3, I3en, and I4i host types.
Note: Adding an existing VMware Cloud on AWS SDDC to VMware Live Cyber Recovery is a permanent operation. When you add an SDDC, it mounts the cloud file system that cannot be unmounted.


When adding an existing VMware Cloud on AWS SDDC for recovery, the SDDC:
  • Must be version 1.18 or higher.
  • Cannot have stretched clusters.
  • Cannot have a management subnet that is different from the subnet used by recovery SDDCs already added in the current recovery region.

To allow access from VMware Live Cyber Recovery to an existing VMware Cloud on AWS SDDC vCenter Server, see Access Recovery SDDC on VMware Cloud on AWS.


  1. From the left navigation, select Recovery SDDCs.
  2. In the upper-right of the page, click the Add recovery SDDC button.
  3. In the Add recovery SDDC dialog box, select Attach existing SDDC.
  4. Next, select a cloud file system and then click Next.
  5. In the Attach existing SDDC dialog box, select an SDDC. If an SDDC is not selectable, the red text explains the reason. For example, Different region means the SDDC you want to add cannot be deployed because it is not in the same region as the selected cloud file system. Click Add.
  6. In the next page of the dialog box, you can enter a subnet for the VMware Live Cyber Recovery, which is used for communication between the protected site and the cloud file system.
    When you add a recovery SDDC, a new /26 subnet is created. This subnet is connected to the Compute Gateway and is separate from the management subnet used by the recovery SDDC. You can either connect to the /26 range or you can enter a new subnet here.
    The subnet you choose cannot overlap with the SDDC management subnet. If you have configured a policy based VPN on the SDDC, that remote network cannot overlap with the /26 subnet.
  7. Finally, enter the phrase ATTACH SDDC in all uppercase letters in the confirmation text box, and then click Attach. This process can take up to 30 minutes.

What to do next

When you add an SDDC with multiple clusters, the default cluster is attached first. All additional clusters are attached next, and their progress can be monitored at Sites > recovery SDDC If any clusters fail to attach, you can attach them manually. For more information, see Attach a Cluster.