One of the obvious benefits of having multiple hard drives is that you have more than one place to put all your stuff. In most cases, this involves creating a couple of ad-hoc folders for music or games on a secondary drive — folders that live outside your traditional home directory. But what if you’d prefer to keep everything in one place? More importantly, what if you want to move your user files or applications to another drive entirely?
The benefit here is not only speed, but reliability. If your boot disk fails, all your files are stored safely on another drive for a speedy recovery. And for those using solid-state disks, you can free up space and keep only the necessities for a speedy OS. It beats messing about with RAID.
Of course, neither Windows or OS X offer an obvious way to do this. By default, both operating systems place all their system files and folders on one drive, and one drive only, leaving you to deal with additional drives on your own. But with a bit of tweaking, it’s easy to move your applications and files to a secondary drive — leaving your computer none the wiser.