Re: Backup's to DVD
Hi.
On Tue, 18 Mar 2014 21:03:17 +0000
PAPYRUS TECHNOLOGIES <ad44@cityscape.co.uk> wrote:
> I realise (and I'm sure Myceneaen Magic does too) that we have let our
> commercial interests override our responsibility to help and advise
> users of the Debian OS. The thread drifted after I posted a serious
> comment about the longevity of stored data on CD, DVD and USB media. I
> realise now it could have been couched in better terms and promise to
> up the standard of my responses and make amends in future.
Ok, so, we're back on the track. Good.
> So Reco, my friend, how do CD, DVD and USB media compare? We would
> welcome your input on this; will my family photographs or the deeds to
> my house be viewable on these modern devices in a thousand years time?
CD - you can read the thing after it gathered dust for 10 years.
Personal experience for both CD-R and CD-RW. An amount of information
can be stored is unreasonable by today's standards.
DVD - you can read the thing after it gathered dust for 5 years.
Personal experience for both DVD-R and DVD-RW. An amount of information
can be stored is unreasonable by today's standards.
BD - no personal experience with those.
USB drives - ok, but will require periodic poweron/poweroff cycle. MTBF
is less as of the modern HDD, which is not much again.
So, for a long-term storage one is basically left with the same thing
as 20 years ago, i.e. - tapes. LTO5s go for $10 each on eBay, providing
you with 1.5Tb per tape. A cost of LTO drive is painful somewhat ($1500
), require an additional SAS or SCSI controller, but this is one-time
investment basically.
Reco
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