Like networking, storage in Hyper-V can be managed quite easily. However, this depends highly on your own infrastructure. Do you use iSCSI and have to connect to a portal? Or do you use a Scale-Out File Server (SOFS)? (See the Configure S2D recipe in Chapter 7, Windows Server Administration.)
Regardless of where your virtual disks could come from, this simple recipe shows you how to create new disks and attach them to a VM. You will also see how to enable resource metering to be able to bill your customers correctly. Also, you will see the difference between dynamic, fixed, and differencing disks.