I may be missing the point here entirely, but with current low cost of HDDs, what is wrong or not good enough with classic RAID5+spare(s)?

I've had my home server forever now, so I never tried to minimize the costs down to the sole storage/NAS, but I would think today a very inexpensive Windows or Linux box with RAID5+spares implemented via the OS would do the trick at low cost?

No?
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= Taym =
MK2a #040103216 * 100Gb *All/Colors* Radio * 3.0a11 * Hijack = taympeg