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
In your Azure VMware Solution private cloud, under Manage, select Clusters > Add a cluster.
Use the slider to select the number of hosts and then select Save.
The deployment of the new cluster begins.
Scale a cluster
In your Azure VMware Solution private cloud, under Manage, select Clusters.
Select the cluster you want to scale, select More (...) and then select Edit.
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.