At 05:26 PM 2009-01-07, Marcos Sueiro Bal wrote:
>Happy New Year, everyone.
Happy New Year to you, too Marcos!
>Dave, your points are well taken. We are obviously on the same side of
>this issue (and many others). I was more worried about non-experts
>(including administrators) thinking that digital (even with
>high-quality drives) is cheaper than analogue.
Digital has the advantage of no more hits in quality to create
multiple identical clones with no loss in quality after the original
"hit" of the analogue to digital conversion. That, as they say in the
ads for the credit card, is priceless, in my opinion. The downstream
migrations and clone distribution under a LOCKSS-type philosophy can
be verified to be bit-accurate. It is exciting.
>The analogue preservation world has plenty of horror stories
But, the good news is often severely degraded analog tapes can be
recovered and nothing beats lack-of-density for robustness.
>one recounted by Richard surely will not be the last of the horror
>stories from the digital world, even with supposedly "perfect"
Well, the horror story got worse. DriveSavers couldn't because
apparently the drive had been disassembled earlier in the chain than
having it delivered to CBL and the platters had fingermarks on them
(which destroys the magnetic coating) and the heads had been put in backwards.
>There is no question that luck also plays a part.
In this case, also stupidity. NEVER EVER EVER open a hard drive
unless you want to destroy whatever chance is left for retrieving the data.
Let's see...one copy, one failed and obviously unverified backup,
technician who opens up the drive in his basement workshop before
sending it off for restoration. Just stupid is all I can say. Oh, and
my reward for this is taking on IT systems
design/consulting/monitoring for the charity.
Richard L. Hess email: [log in to unmask]
Aurora, Ontario, Canada (905) 713 6733 1-877-TAPE-FIX
Detailed contact information: http://www.richardhess.com/tape/contact.htm
Quality tape transfers -- even from hard-to-play tapes.