VxRail nodes running vSAN Original Storage Architecture (OSA) are enclosed in a one-node, single-server system. Each node has single or dual-core processors and either all-flash solid-state disks (SSDs) or a hybrid mix of flash SSDs and hard drives. The nodes form a networked cluster with a minimum of two nodes (or three nodes for scale-out clusters), and can scale out to a maximum of 64 nodes. The first three nodes in a cluster must have the same compute, memory, and storage configuration. All nodes within a cluster must be of the same storage configuration (either all-hybrid or all-flash) and base networking (1 GbE, 10 GbE, or 25 GbE). The flexibility to mix nodes within a cluster is supported. From the minimum configuration to the maximum, the VxRail cluster is easily expanded one node at a time.
System models support either 100 GbE, 25 GbE, or 10 GbE networking. 10 Gb and 25 Gb Ethernet networks are required for all-flash configurations and environments that will scale to more than eight nodes. Additional PCIe NICs are available, allowing the customer to expand VM network traffic.