On Thu, 27 Feb 2020 12:56:18 +0000, Jan Panteltje wrote:

> For years I have followed the 3 methods backup system 1) SDcard FLASH 2)
> normal harddisk (few TB is very cheap) magnetic 3) Blu-ray optical.
> I stopped with optical for now as I have about 1000 DVDs and blue-rays
> in a big alu lightproof box, mostly movies though, box is full!
> Seems magnetic medium still wins.
> Have not tried any SSD yet, not sure about the reliability of that
> stuff,
> price is high too.
> Any practical experiences?
>
I don't trust Optical disks either: I've had several CDs written on PCs
become unreadable after 3-4 years, so I no longer use them for storage: a
CD RW is, after all only a dye layer that can be selectively changed by a
bright light so, unlike a commercial, pressed and aluminised CD is
guaranteed to deteriorate over time.

I tried DDS2 tape a while back but, though apparently reliable, was slow
and relatively expensive. Plus, at a mere 4GB per cassette, their
capacity is far too small for current use.

Now I'm using WD Essentials 1TG and 2TB USB drives which, so far, are
proving to be fast and reliable.


> And keep a database of all you have!
> For example disk 998 (box holds 1000, was almost last year)
>
The benefit of using rsync  or rsnapshot is that the disks are self-
indexing because the files are stored in essentially thre same directory
structure as the files being backed up.

--
Martin    | martin at
Gregorie  | gregorie dot org

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