jumbo

Hi community, "Invented" following plan... I want to build-in unraid NAS into my existing system. It's Windows XP based, running VMWare Workstation on it. Planning to attach several new SATAs to my hardware, then create unraid VM on WMWare and connect new SATA drives as RAW directly to unraid VM. What it gives to me - I want to have one system and not separate machine for NAS; I suppose there will be more quick connection and data transfer rates, compared to ethernet; Could anyone tell me please, will this scheme provide SATAs spin down, when access is not needed? Is Vt-d absolutelly needed for all this? Thanks in advance!! JJ