Hi,
I just use HDDs. I make at least 2 copies of everything, and keep an
index of what has been stored on each HDD. So I know what to redo if a
disk fails.
I then integrity check the disks every few years.
After 5 years, I refresh the data. Add a new HDD, and transfer all the
data over to it. This ensures that all the data has had at least one
full write cycle every 5 years.
I figure that no media will last forever, and thus ensure that no
backups are older than 5 years.
I also tend to add extra hash files to the backup, for example
sha512sum of the files, so I can detect any bit-flips.
Kind Regards
James
On Tue, 6 Apr 2021 at 12:23, rmluglist2--- via Hampshire
<hampshire@???> wrote:
>
> Hi all
>
>
>
> I’ll spare you all the detail but I need to backup 16Tb to some sort of archive – i.e. unlikely to ever need it in a hurry. I know 16Tb is a lot for a “home” situation but I can’t find anything reasonable. Can anyone tell me if there’s an option I’m missing:
>
>
>
> I’ve looked at:
>
> * HDD (the cheapest and most fragile)
>
> * Tape (the dearest but prone to mechanical failure) and
>
> * Cloud (privacy issues and would mean an ongoing cost as well as a dreadful time to upload (16Tb over a 16MBps upload is no joke – and would mean a lot of checksums to make sure it was all ok once uploaded).
>
>
>
> What I need to know is if I’ve missed an “obvious” solution? Is SD card reliable for long term storage.
>
>
>
> Cheers
>
> R
>
> --
> Please post to: Hampshire@???
> Web Interface: https://mailman.lug.org.uk/mailman/listinfo/hampshire
> LUG URL: http://www.hantslug.org.uk
> --------------------------------------------------------------
--
Please post to: Hampshire@???
Web Interface:
https://mailman.lug.org.uk/mailman/listinfo/hampshire
LUG URL:
http://www.hantslug.org.uk
--------------------------------------------------------------
