Yes, of course, the project I am putting an MD 3200i iSCSI Storage with 4TB free capacity.
As for backing up data such as files, exchange server and database, it exists through other software, which will not make it mandatory for this project, at least now is to purchase an array of other smaller and more modest brand for backing up VMs, not now but maybe in the future.
Thanks to everyone for the tips, are very valuable.