I would like to build a home file server running Windows Server 2012, with WD Red hard drives configured in RAID 10.
What is the least number of these hard drives I need to purchase to be able to configure in RAID 10? I've researched and some sites say 4. Is this accurate?
Do I need an additional hard drive to install the OS (Windows Server 2012) on, or will I be installing it on the hard drives I have configured in RAID 10? (That's probably a stupid question, but I just want to be sure.)