We have already had the pleasure to see how WD's 6TB Purple surveillance hard disk performed in our previous review, but WD was kind enough to provide us with two of these drives and thereby allowing us to test them in a RAID environment too. A surveillance setup will rarely consist of just one hard drive, making this review one to take a closer look at before investing in your future surveillance storage.

With two drives at our disposal, we can run them as in RAID 1 and RAID 0 setups, depending on whether we want speed and storage or redundancy. There isn't one setup that is better than another, it comes down to what you need in your setup. Most people will probably get more drives and opt for a RAID 5, RAID 6, or RAID 10 setup, but those are out of our reach when working with just two drives.