10 compelling reasons to upgrade to Windows Server 2012
By Debra Littlejohn Shinder of Tech Republic:
5: Storage Spaces
Storage is a hot — and complex — topic in the IT world these days. Despite the idea that we’re all going to be storing everything in the public cloud one day, that day is a long way off (and for many organizations concerned about security and reliability, it may never happen). There are myriad solutions for storing data on your network in a way that provides better utilization of storage resources, centralized management, and better scalability, along with security and reliability. Storage area networks (SANs) and network attached storage (NAS) do that, but they can be expensive and difficult to set up.
Storage Spaces is a new feature in Server 2012 that lets you use inexpensive hard drives to create a storage pool, which can then be divided into spaces that are used like physical disks. They can include hot standby drives and use redundancy methods such as 2- or 3-way mirroring or parity. You can add new disks any time, and a space can be larger than the physical capacity of the pool. When you add new drives, the space automatically uses the extra capacity. Read more about Storage Spaces in this MSDN blog post