General best practices for sizing your deployment include:
- User density—If concurrency is a concern, calculate how many users will use the environment at the peak of utilization. For example, if only 80 percent are using the environment at any time, the environment must support only that number of users (plus a failure capacity).
- Disaster recovery—For DR planning, implement a dual/multi-site solution, as recommended by Dell Technologies. The goal is to keep the environment online and, in case of an outage, to perform an environment recovery with minimum disruption to the business.
- Management and compute clusters—For our small test environment, we used a combined management and compute cluster. For environments deployed at a larger scale, we recommend that you separate the management and compute layers. When creating a management cluster for a large-scale deployment, consider using the E-Series VxRail or the R640 platform to reduce the data center footprint. With a more easily configured platform, the V-Series VxRail or R740XD platforms are preferred for compute clusters.
- Network isolation—When designing for larger-scale deployments, consider physically separating the management and VDI traffic from the vSAN traffic for traffic isolation and to improve network performance and scalability. This design illustrates a two-NIC configuration per appliance with all the traffic separated logically using VLAN.