You can add clusters to a cloud SDDC up to the maximum configured for your account.

Additional clusters are created in the same availability zone as the initial SDDC.

If your SDDC uses networking based on NSX-T, you can add a cluster to an SDDC deployed in multiple availability zones. If your SDDC uses networking based on NSX for vSphere, adding a cluster to an SDDC deployed in multiple availability zones is not supported.

Logical networks you have created for your SDDC are automatically shared across all clusters. Compute and storage resources are configured similarly for all clusters. For example:

  • Each cluster contains a Compute-ResourcePool and a Mgmt-ResourcePool, with the same permissions that these have in the initial SDDC cluster.

  • Each cluster contains a vsanDatastore and a workloadDatastore, with the same permissions that these have in the initial SDDC cluster.

Procedure

  1. Log in to the VMC Console at https://vmc.vmware.com.
  2. On the card for the SDDC you want to add a cluster to, select Actions > Add Cluster.
  3. Select the host type.

    Option

    Description

    i3 (Local SSD)

    Provision hosts with a fixed amount of local SSD storage per host.

    R5 (EBS)

    Provision hosts with EBS-based storage. When provisioning R5 hosts, you can select the storage capacity per host. This allows you to provision greater capacity for workloads requiring large storage capacities.

  4. Specify the number of CPU cores to enable for each host in the cluster.

    All CPU cores are enabled by default on each host in the cluster. If you'd like to disable some of the cores to save on licensing costs for applications that are licensed on a per-core basis, you can enable a subset of the available cores. This subset applies to all hosts in the cluster. Other cores on each host are disabled and remain disabled for the lifetime of the host.

    Important:

    Reducing core count affects the compute performance of all workloads on the host and increases the likelihood of system performance degradation. For example, vCenter and vSAN overhead can become more noticeable, and operations like adding clusters and hosts can take longer to complete.

  5. Select the number of hosts in the cluster.
  6. If you selected R5 (EBS) hosts, select the storage capacity per host.

    The value you select is used for all hosts in the cluster, including any hosts you add to the cluster after creation.

  7. click Add Cluster.

Results

A progress bar shows the progress of cluster creation.