For my home-server that occasionally runs I am busy expanding it. I only had 2 drives, of different size, a 4TB WD Blue and a 3TB WD Red. Now I want to remove the WD Red, and I have bought 3 x 4TB WD Blue drives. These drives perform pretty well in a normal home situation. This home server will definitely not be running 24/7 but I will turn it on now and then to add more movies, tv-shows, update my backup, just my data-rig, sort of. But I am scratching my head about what kind of RAID I would like to use. I have 4 drives of 4TB. Raid 0 is nice and fast, but no fault tolerance. Raid 1 is loosing half of your diskspace. Raid 6 the same. Raid 5 seems the most logical choice. But what to choose, the raid controller on the motherboard? Or do it through Windows 10? And also I cannot really find that much about recover a raid 5 array after 1 drive has failed. JBOD is also an option, but I determined, this is also a form of an 'array' and if one drive fails, then this array fails also, and I don't see any method of retrieving the remaining data, nor do you know which data remains. So JBOD, no. Raid 5 seems to most logical choice, even though I loose 4TB of diskspace because of parity. But, is it okay to do it with WD Blue's, even in a situation I don't use the home (backup) server that much?
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Edit: @User: The problem is that if you have 4 drives of each 4TB what options do you furthermore have? Sure I can also keep them completely separated, but then there is no safety. Raid 6 is simply taking too much data. JBOD is nearly the same as 4 loose drives or raid 0, because if the array fails, how to get it back? What remains? Raid 5 does seem the only logical choice. And I am not a heavy user or have a big family using this data home server.
