VxRail scale-out clusters start with as few as 2 nodes and can grow in 1-node increments up to 64 nodes, providing performance and capacity to meet a wide range of use cases. New systems can be added nondisruptively, and different models can be mixed within a VxRail cluster. Flexible storage options also allow a node to start with a few drives, and drives can be added as capacity requirements grow, as shown in the following figure. Single-node upgrades and drive scalability protect an optimized initial investment. Customers can start with what they need and expand the VxRail cluster by adding nodes or drives, or both, to increase performance and capacity as needed.
For planning, consider these basic rules about scaling:
With VxRail, customers can upgrade nodes or add memory, NIC cards, cache drives, and capacity drives. GPUs and SmartDPUs can be upgraded or added in the supported node types. It is not possible to upgrade from all-flash to all-NVMe.