If we are using vCloud Director, then Edge Cluster can not be combined with the management cluster. It can only be combined with the resource/payload/workload cluster.
If we are using VSAN, there are several consideration too if we want to use it as management cluster.
Please read these references to explain detail of the technical stuffs:
- Architecting a VMware vCloud Director Solution | Tomas Fojta | October 2015: http://www.vmware.com/files/pdf/vcloud-air/Architecting-a-VMware-vCloud-Director-Solution.pdf See page 32 6.3.2 NSX Edge Cluster
- vCAT-SP: http://www.vmware.com/cloud-computing/cloud-architecture/vcat-sp
- Architecting a VMware vSphere Compute Platform | Martin Hosken | February 2016: http://www.vmware.com/files/pdf/vcloud-air/Architecting-a-VMware-vSphere-Compute-Platform.pdf
- Expanding on VSAN 2-node, 3-node and 4-node configuration considerations – http://cormachogan.com/2016/04/28/expanding-vsan-2-node-3-node-4-node-configuration-considerations/
- Using VSAN in two or three-node clusters? You must read this: http://www.vifx.co.nz/blog/using-vsan-in-two-or-three-node-clusters
- Leveraging VMware Virtual SAN for Highly Available Management Clusters | Danilo Feroce | March 2016
- Architecting a VMware Virtual SAN for VMware vCloud Air Network | Derek Mitchell | February 2016
- Architecting a VMware vSphere Compute Platform | Martin Hosken | February 2016
Once again, thanks Bayu for the discussion.