Tutorial: Scale clusters in a private cloud

To get the most out of your Azure VMware Solution private cloud experience, scale the clusters and hosts to reflect what you need for planned workloads. You can scale the clusters and hosts in a private cloud as required for your application workload. You should address performance and availability limitations for specific services on a case-by-case basis.

The following table describes the maximum limits for Azure VMware Solution.

Resource Limit
Clusters per private cloud 12
Minimum number of hosts per cluster 3
Maximum number of hosts per cluster 16
hosts per private cloud 96
vCenter per private cloud 1
HCX site pairings 25 (any edition)
Azure VMware Solution ExpressRoute max linked private clouds 4
The virtual network gateway used determines the actual max linked private clouds. For more details, see About ExpressRoute virtual network gateways
Azure VMware Solution ExpressRoute port speed 10 Gbps
The virtual network gateway used determines the actual bandwidth. For more details, see About ExpressRoute virtual network gateways
Public IPs exposed via vWAN 100
vSAN capacity limits 75% of total usable (keep 25% available for SLA)

For other VMware-specific limits, use the VMware configuration maximum tool!.

In this tutorial, you'll use the Azure portal to:

  • Add a cluster to an existing private cloud
  • Add hosts to an existing cluster

Prerequisites

You'll need an existing private cloud to complete this tutorial. If you haven't created a private cloud, follow the create a private cloud tutorial to create one.

Add a new cluster

  1. In your Azure VMware Solution private cloud, under Manage, select Clusters > Add a cluster.

    Screenshot showing how to add a cluster to an Azure VMware Solution private cloud.

  2. Use the slider to select the number of hosts and then select Save.

    Screenshot showing how to configure a new cluster.

    The deployment of the new cluster begins.

Scale a cluster

  1. In your Azure VMware Solution private cloud, under Manage, select Clusters.

  2. Select the cluster you want to scale, select More (...) and then select Edit.

    Screenshot showing where to edit an existing cluster.

  3. Use the slider to select the number of hosts and then select Save.

    The addition of hosts to the cluster begins.

Next steps

If you require another Azure VMware Solution private cloud, create another private cloud, following the same networking prerequisites, cluster, and host limits.