vSphere 5.5 introduced a new feature called Virtual SAN (vSAN). This feature allows utilizing a host's local storage to create a shared distributed storage for VM placement.
vSAN is a software-based solution built into ESXi; it's scalable and easy to configure and manage.
vSAN requires a license separate from vSphere and vCenter. The feature is licensed on a per-CPU basis.
The minimum infrastructure requirements for vSAN are:
Also, it is recommended to: