mag reel tape (was Re: Boston Linux Conference December 3-4)

[John Abreau]

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"Travis Roy" <travis at scootz.net> writes:

> I'm not sure if our system could read it. I'll ask and get back to you.
> Do you know how they were saved? The format?

Yes, I wrote them myself, back when I was young and naive and didn't 
really understand how the technology worked. I wrote out each tape as 
a series of tar images, and followed each one with an EOF marker 
with mt, not realizing that tar was implicitly writing an EOF when 
it finished writing its stuff. So each tapes actually contains a sequence 
of the form

    tar-image zero-length-file tar-image zero-length-file ... 

If I recall correctly, the density was something like 6250 or 6280 
or something similar.


- --
John Abreau / Executive Director, Boston Linux & Unix
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