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RE: wet-behind-the-ears whippersnapper seeking advice on building a nationwide network


From: "Jamie Bowden" <jamie () photon com>
Date: Tue, 20 Sep 2011 07:57:43 -0400



From: Valdis.Kletnieks () vt edu [mailto:Valdis.Kletnieks () vt edu]
Sent: Tuesday, September 20, 2011 12:15 AM

On Tue, 20 Sep 2011 05:32:04 +0200, Randy Bush said:

you left out one connection via a chevy full of hollerith cards and
the
second a canoe full of 7 track tape in waterproof containers.

Does anybody actually *have* a functional 7 track drive?  I remember
seeing a
story on PBS (may have been a Nova episode) where they discussed the
fact that
NASA had literally thousands of 7 track tapes of telemetry data and no
way to
read them because their last 7 track drive had died, and IBM had no 7
track
read/write heads left either...

(I admit we still have a rack of 9-track tapes in ez-loader seals in
our tape
library, though we got rid of our last IBM 3420 about a decade ago. I
think
most of them are tapes we've lost track of ownership info, and don't
dare
dispose of in case the owner turns up.. ;)

It's worse than that.  I spent a little time working at NASA LaRC, and
even if you had a functional drive, the tapes are mostly garbage (we had
tens of thousands of 9 track spools that had spent decades in rooms with
no temp or humidity controls).  No point in trying to read data from a
tape that's shedding the layer of magnetic material.  We were not
unique.

Jamie


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