Well, I've been doing some reading about RAID* disk drive arrays, and have concluded that for all my
various data, it might be better than my present manually backing up to 2 or 3 external drives

It includes mainly backing up of image/video files and various document files, both of which I accumulate
about 100~500 MB a week (or so).

Anyway, from reading about it, I reckon that 2 drives in a RAID 1 arrangement would do the trick

What I would like to hear about is any arrangements that other members use here (Thanks!) and
some of your reasons.

BTW, I don't know when this will start. I've got the task of sorting our my present "RAID" method...
Random Accumulation of Irregular Data.

* RAID is usually supposed to denote either one of "Random Array of Independent/Inexpensive Disks".
But, all RAID methods seem to have some interdependence of disk drives , and of what use is a
description of "Inexpensive" in this sense? So, it seems to be more of a catchphrase than
anything else.