With each new VI workload domain, there is the option to deploy three new NSX-T management virtual appliances to manage network requirements, or to reuse existing NSX-T managers. The use cases that trigger this decision include:
- Test/Development or pre-production workloads that do not use the production network
- Applications in the workload domain have an NSX-T version dependency.
- Applications that require more isolation and security
- Cloud Foundation deployments that have a multitenant workload requirement
- A new VLAN-backed transport zone is required.
If a new set of NSX-T management virtual appliances is planned for the management workload domain, the following points must be considered:
- Each NSX-T manager has a resource reservation of 48 GB of memory.
- NSX-T managers are subject to vSphere HA admission control.
- NSX-T manager virtual appliances can be CPU intensive depending on workload activity.
Figure 11. VI workload domain deployment using existing NSX-T managers
Figure 12. Overview of initial deployment of NSX-T based VI workload by SDDC Manager