4.6.1 Design Considerations
The NSX Controller cluster must be deployed in an odd number of nodes. The current limitation with version 6.1.x is three nodes. This is to maintain majority in the event of a node failure.
Distribute the NSX Controller VMs across ESXi hosts within the NSX Edge cluster. Leverage VM:VM anti-affinity rules to achieve this.
The NSX Controller VMs are deployed as virtual appliances with the following resource specifications.
Table 3. NSX Controller Cluster VM Specification
Attribute | Specification |
Memory | 4 GB |
CPU Reservation | 2048 Mhz |
vCPU | 4 |
Storage | 20 GB |
Note Modifying settings is unsupported and memory reservation is not required.