Meant to post this earlier (sorry) - but have done a bit of documentation (and video recording of this 2TB boundary conditions here:
That is my view too.
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Tom Howarth VCP / vExpert
VMware Communities User Moderator
Contributing author for the upcoming book "[VMware vSphere and Virtual Infrastructure Security: Securing ESX and the Virtual Environment|http://my.safaribooksonline.com/9780136083214]”. Currently available on roughcuts