VMware Virtual SAN (or VSAN) is a Software Defined Storage solution from VMware that also fits in the hyper(visor)-converged model. Although is a separate product, the core functions to implement it are already present in the vSphere 5.5 U1 version making really easy to deploy and enable it.
Also the HCL is mainly the same from vSphere 5.5, but some requirements and special considerations must be considered before implementing a VSAN solution.
You can start from the scracth buy scratch your hyper-converged architecture, or you can directly bought a Virtual SAN ready nodes (minimum 3 for start).
A Virtual SAN ready nodes is mainly a server ready-to-go designed for combined computing and storage functions with all the requirements and compatibility aspects satisfied by the hardware vendor.
The Virtual SAN Ready Nodes include unique and optimized combination of hardware components from the OEM, and may also include software from the OEM for vSphere and Virtual SAN. Virtual SAN Ready Nodes are ideal as hyper-converged building blocks for large datacenter environments with strong automation and a need to customize hardware and software configurations.
Actually there are several Virtual SAN Ready Nodes from leading OEM vendors:
- Dell (3 Ready Nodes)
- Fujitsu (5 Ready Nodes)
- HP (10 Ready Nodes)
- SuperMicro (6 Ready Nodes)
For more information see also this post: Virtual SAN Ready Nodes – Ready, Set, Go!