LUNs Alignment

Hi,

      Does any body has any recomendations about LUN´s Alignment for OVM 3.2.8?, we´re using a Pillar Axiom 600 System

for an OVM environment, most of the VMs are Windows2008,R2 64-bits, and a couple of Windows2012 R2 64-bits and a few Windows2003 Server 32-bits

the size of the Phisical Disks or LUN´s for OS are 100GB, 200GB and 500GB. and LUN´s size for Data are 30GB, 40GB, 60GB, 120GB and 380GB.

      I apreciate any inputs about this matter.

Best Regards.