[144834] in North American Network Operators' Group

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Re: wet-behind-the-ears whippersnapper seeking advice on building

daemon@ATHENA.MIT.EDU (Joel jaeggli)
Tue Sep 20 00:33:42 2011

Date: Mon, 19 Sep 2011 21:32:41 -0700
From: Joel jaeggli <joelja@bogus.com>
To: Valdis.Kletnieks@vt.edu
In-Reply-To: <9606.1316492099@turing-police.cc.vt.edu>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

given that as 729 maxes out at 800cpi there are probably slightly kinky
ways to attack the problem, e.g. someone doing it with disk packs.

http://chrisfenton.com/cray-1-digital-archeology/

there's still plenty of equipment that can wrap 1/2" tape around a spindle.

On 9/19/11 21:14 , Valdis.Kletnieks@vt.edu wrote:
> 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.. ;)
> 



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