“DataCore has its own Virtual SAN Appliance software, but this is enterprise class and has a vast array of SAN and related functionality built on top of it. VMware’s vSAN is no contest in the markets that DataCore’s SANsymphony is sold into.”
Check out the full article by Chris Mellor from the Register:
http://www.theregister.co.uk/2013/08/28/vmwares_vsan_bull_in_the_vsa_china_shop/