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From: scott@zorch.sf-bay.org (Scott Hazen Mueller)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: adaptec 2842, exabyte 4200c, and NO SENSE
Date: 9 Jul 1995 20:48:51 GMT
Organization: At Home; Salida, CA
Lines: 22
Message-ID: <3tpfbj$i6i@gazette.tandem.com>
References: <3tha1v$q29@one.mind.net> <3tmucl$mvt@uriah.heep.sax.de>
Reply-To: scott@zorch.sf-bay.org
NNTP-Posting-Host: 192.150.103.17
In article <3tmucl$mvt@uriah.heep.sax.de>, j@uriah.heep.sax.de (J Wunsch) writes:
>Alan Laird <laird@mind.net> wrote:
>>dd if=/dev/nrst0 bs=63b
>
>I don't know what tape drive you are operating, but 63 bytes
>block size doesn't seem to make any sense for me.
DD(1) UNIX Reference Manual DD(1)
Where sizes are specified, a decimal number of bytes is expected. If the
number ends with a ``b'', ``k'', ``m'' or ``w'', the number is multiplied
by 512, 1024 (1K), 1048576 (1M) or the number of bytes in an integer, re-
spectively. Two or more numbers may be separated by an ``x'' to indicate
a product.
63b = 31.5k. I don't know if the controller block size is 32k; somewhere I
just read that 64k was a common size, hence the common use of 126b.
--
Scott Hazen Mueller | scott@zorch.SF-Bay.ORG or tandem!zorch!scott