[TriLUG] OT: long term storage
23 Aug 2002 10:16:39 -0600
On Fri, 2002-08-23 at 09:58, Mark Turner wrote:
> Ryan Wheaton wrote:
> > I'm looking into long term storage / backup solutions and was
> >wondering what everyone else was using (and how well it worked), and if
> >there was something out there that maybe I hadn't thought of.
> Optical will easily outlast tape. Mag media has about 1/5th the
> shelflife of CD's or DVD's. Humidity is evil.
Absolutely. See the studies of CD-R longevity at:
which basically says that CD-Rs will last for many decades providing
that you keep them dry, relatively cool (25 deg.C--room temp--is fine),
and shielded from sunlight or other bright light sources.
> DVD's and CD's have faster access times (no rewinding). Also, the
> hardware and media are cheaper. I bought a DVD-RAM drive from Intrex
> this week for $45. And there's something to be said about just hanging
> the disc off a network share and letting your users get whatever they
> need without having to bother you to find a tape.
And, in my experience, tapes and tape drives:
1) break more quickly due to more moving parts, and
2) seem to be continuously (every 3-5yrs) outdated by newer
Compare that with CDs which:
1) are available on nearly *every* machine, and
2) are sufficiently backwards-compatible that most good-quality
CD-Rs will work on even "ancient" early-90's (1-2X) CDROM
I'll wager that CD-Rs will be useful *well* into the next decade.
ps - I'm in Golden, CO these days so look me up if/when you're in
Edward H. Hill III, PhD
Post-Doctoral Researcher | Email: email@example.com, firstname.lastname@example.org
Division of ESE | URLs: http://www.eh3.com
Colorado School of Mines | http://cesep.mines.edu/people/edhill.php
Golden, CO 80401 | Phone: 303-273-3483 Fax: 303-273-3311