Hi Zrilanka,

Given your two servers only have direct attached storage, I'd say your most limiting factor it that you're not going to be able to use the more advanced features of vCenter like vMotion and DRS.

VMware does offer a product that allows you to share this local storage (vSphere Storage Appliance), but it's not the cheapest and may not be in budget. There are also similar products that do this which can be googled. The VSA can be bundled in with an Essentials Plus kit but the cost goes from 4,495 RRP to 7,995 - http://www.vmware.com/products/vsphere/pricing.html - Regardless, for only 3 servers you are trying to virtalise I'm not that's the best product.

Could you advise on what size environment these are going into? Are the two physical servers sitting in the same site? How big is the exchange environment? Have you considered splitting out exchange into DAGs for redundancy?

I'd be happy to advise some more if you could list your requirements.

Cheers,