Have suggestions for a "roll your own file server"?

[Bruce Labitt]

For the second time in 3 months I have had a computer failure.  Oddly, it
was a PS on the motherboard both times.  (Two different MB's.)  Fortunately
the disks were ok.  I'm living on borrowed time.  Next time, I may not be
that lucky.

Need a file server system with some sort of RAID redundancy.  I want to
backup 2 main computers, plus photos.  Maybe this RPI4 too, since that's
what I'm running on, due to the second failure.  If this SSD goes, I'm
gonna be a sad puppy.  This is for home use, so we are not talking
Exabytes.  I'm thinking about 2-4TB of RAID.  Unless of course, RAID is
obsolete these days.  Honestly, I find some of the levels of RAID
confusing.  I want something that will survive a disk failure (or two) out
of the array.  Have any ideas, or can you point me to some place that
discusses this somewhat intelligently?

Are there reasonable systems that one can put together oneself these days?
Can I repurpose an older PC for this purpose?  Or an RPI4?  What are the
gotchas of going this way?

I want to be able to set up a daily rsync or equivalent so we will lose as
little as possible.  At the moment, I'm not thinking about surviving fire
or disaster.  Maybe I should, but I suspect the costs balloon
considerably.  I do not want to backup to the cloud because, plain and
simple, I don't trust it to be fully secure.

Thanks for any and all suggestions.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.gnhlug.org/pipermail/gnhlug-discuss/attachments/20210308/2b0365f4/attachment-0001.html