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From: oran@vlss.amdahl.com (Oran Davis)
Newsgroups: comp.sys.apollo
Subject: 1/2" tape conversion to 1/4" - urgent question
Message-ID: <ORAN.90Oct30140613@daniela.vlss.amdahl.com>
Date: 30 Oct 90 22:06:13 GMT
Sender: netnews@ccc.amdahl.com
Distribution: comp
Organization: Amdahl Corp., Sunnyvale CA
Lines: 27

I need to convert Apollo 1/2" tapes written on 9.2.6 to 1/4" Apollo tapes.
I have mostly non Apollo equipment that can read practically any tape.
I assume that I need to repeat many times time the following (Sun syntax):

dd if=<input tape device driver> of=<temp output file name> bs=<read block size>

This should bring to a local disk all the information form the tape, Then do:

dd if=<temp input file name> of=<output tape device driver> bs=<write block size>

My question is does any one know the following:

<input tape device driver>  any special details use Sun as reference.
<output tape device driver> any special details use Sun as reference.
<read block size> from the 1/2" tape.
<write block size>  to the 1/4" tape.


Any information you out there have even black magic and fragmented details or rumors
will be greatly appreciated.

	>- Oran
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      | Oran Davis            |
      | oran@vlss.amdahl.comm |
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