When using SMBv3 for storage of HyperV - are separate shares needed for each host?

Documents like http://technet.microsoft.com/en-us/library/jj134187.aspx#BKMK_Step5

Seem to indicate seperate shares are needed one the SMBv3 Server for each HyperV Host (or possibly each guest)

I can't find a mapping to indicate the separation required. Is it a seperate share for each Host? Guest? Are folders enough?

Thanks
Paul