Many years ago I setup a RAID5 system, primarily becausae 1TB had just
come out and they were horrendously expensive, my local computer store
had 256G drives dirt cheap, so I bought 6 of them and put them in a
RAID5 array using linux software RAID (actually only 4, the other two
were spares). The primary reason for doing this was not for the
protection, but so I had one large volume so I didn't have to worry
about what songs went on which disk. Yes I only had 750G, but that was
enough. 

By using software RAID it was a portable array. That array has been used
on three different motherboards and a couple different linux OS
versions. Once TB drives became cheaper I started backing it up on a TB
drive. I had to replace one of the drives, it went without a hitch, just
put in one of the spares and run the software and it rebuilt the array.

After many years something catastrophic happened, a disk went bad and
the array could not be rebuilt. I never did find out why. At that point
I decided it was high time to retire the array, took the whole library,
put it on a tiny drive inside a FITPC2 and put vortexbox on it. It works
great and fits in the palm of my hand!

Today I would never do that array, large drives are available cheap
enough to hold the whole thing on one drive. 

I do a full backup on an external drive at regular intervals, every so
often I need it. It's been awhile since I have taken one off site, I
probably need to do that.

John S.


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