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From: wescott@Columbia.NCR.COM (Mike Wescott)
Newsgroups: comp.sys.ncr
Subject: Re: Copying from one tape to another tape
Keywords: cpio, tar, dd
Message-ID: <1892@sauron.Columbia.NCR.COM>
Date: 14 Jan 90 03:58:07 GMT
References: <812@pmday_2.Dayton.NCR.COM> <1887@sauron.Columbia.NCR.COM> <6123@uhccux.uhcc.hawaii.edu>
Sender: news@sauron.Columbia.NCR.COM
Reply-To: wescott@micky.Columbia.NCR.COM (Mike Wescott)
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Organization: E&M-Columbia, NCR Corp, W Columbia, SC
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In article <6123@uhccux.uhcc.hawaii.edu> bt455s10@uhccux.UUCP (Carl "Art" McIntosh) writes:
> I ran across a problem a couple of months back regarding reading 45MB
> tapes in a 150MB drive.  Evidently the bytes are *swapped*, so you need
> to use dd(1) to do the conversion.

Actually it is a function of using an Intel bus (mutlibus I) with a 
big-endian processor (MC68K).  The newer controllers (SCSI) reswap
the bytes so tapes and other peripherals look right to application
software.

The dd command:		dd  ... conv=swab
can be used when ever this becomes a problem transporting files
between machines.
--
	-Mike Wescott
	 mike.wescott@ncrcae.Columbia.NCR.COM