Deploy an SDDC to host your workloads in the cloud.

To create an SDDC, pick an AWS region to host it, give the SDDC a name, and specify how many ESXi hosts you want the SDDC to contain. If you don't already have an AWS account, you can still create a starter configuration SDDC that contains a single ESXi host. There is a one-to-one relationship between SDDCs and customer AWS accounts. You can connect an SDDC to a single customer AWS account and Amazon VPC.


  1. Log in to the VMC Console at
  2. Click Create SDDC.
  3. Configure SDDC properties.
    1. Select the AWS region in which to deploy the SDDC.

      The following regions are available:

      • US West (Oregon)

      • US East (N. Virginia)

      • Europe (London)

      • Europe (Frankfurt)

      • Asia Pacific (Sydney)

      • Asia Pacific (Tokyo)

      • Europe (Ireland)

      • US West (N. California)

      • US East (Ohio)

    2. Select deployment options.



      Single Host

      Select this option to create Single Host Starter Configuration SDDC. Single Host Starter Configuration SDDCs expire after 30 days. For more information, see Deploying a Single Host SDDC Starter Configuration.


      Select this option to create a multiple host SDDC.

      Stretched Cluster

      If you create a multiple host SDDC, you also have the option to create a stretched cluster that spans two availability zones. The multiple availability zone stretched cluster provides fault tolerance and availability in the event that there is a problem with one of the availability zones. You must have a minimum of 6 hosts in a stretched cluster, and you must deploy an even number of hosts.


      The US West (N. California) region does not currently support Stretched Clusters.

    3. Enter a name for your SDDC.
    4. If you are creating a multiple host SDDC, specify the initial Number of Hosts you want in the SDDC.

      You can add or remove hosts later if you need to.


      Storage capacity, performance, and redundancy are all affected by the number of hosts in the SDDC. See Storage Capacity and Data Redundancy for more information.

      Host Capacity and Total Capacity update to reflect the number of hosts you've specified.

  4. Connect to an AWS account.



    Skip for now

    If you don't have an AWS account or don't want to connect to one you have now, you can postpone this step for up to 14 days. This option is currently available for Single Host SDDCs only.

    Use an existing AWS account

    From the Choose an AWS account drop-down, select an AWS account to use an AWS account that was previously connected to another SDDC.


    Ensure that you do not select an account that is currently connected to an active SDDC. VMware Cloud on AWS does not support connecting multiple SDDCs to the same AWS account.

    Connect a new AWS account

    From the Choose an AWS account drop-down. select Connect to a new AWS account and follow the instructions on the page. The VMC Console shows the progress of the connection.

  5. Click NEXT to specify a range of IP addresses for the management subnet in the SDDC.

    Enter an IP address range for the management network as a CIDR block or leave the text box blank to use the default, which is You can't change the values specified for the management network after the SDDC has been created. Consider the following when you specify this address range:

    • The IP address range is reserved for the default compute gateway logical network of the SDDC you are deploying. If you specify a management network address range that overlaps with, no default compute gateway logical network is created during deployment and you will have to create one manually after the SDDC is deployed.

    • Choose a range of IP addresses that does not overlap with the AWS subnet you are connecting to. If you plan to connect your SDDC to an on-premises data center, the IP addresses you choose must be different from the ones in your on-premises data center, to avoid IP address conflicts.

    • CIDR blocks of size 16, 20, or 23 are supported. For CIDR blocks of size 20 or 23, the maximum number of hosts your SDDC can contain depends on the CIDR block size you specify and whether the SDDC occupies a single availability zone (AZ) or multiple AZs. For CIDR blocks of size 16, the maximum number of hosts your SDDC can contain is limited to 160. Regardless of the number of AZs it occupies, an SDDC can have at most ten clusters with at most 16 hosts per cluster.

      CIDR block size

      Number of hosts (Single AZ)

      Number of hosts (Multi AZ)





      160 (10 clusters with at most 16 hosts per cluster, regardless of the number of AZs.)



      CIDR block is reserved.

  6. Click DEPLOY SDDC to create the SDDC.


The SDDC takes some time to deploy.

What to do next

To connect to vCenter Server and manage your new SDDC, you must either configure a VPN connection to the management gateway or configure a firewall rule to allow access to vCenter Server.