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Date: Tue, 6 Nov 2007 08:57:50 +0100 (CET)
From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: Roland Smith <rsmith@xs4all.nl>
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Cc: FX Charpentier <charpentierfx@yahoo.com>, James <jamesh@lanl.gov>,
	Sean Murphy <smurphy@calarts.edu>, freebsd-questions@freebsd.org
Subject: Re: Help Failing Disk Problem
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>
> I use dump with the following options (e.g. for /usr);
>
> dump -0 -B 4589560 -C 8 -h 0 -L -u -P \
> 'cat - >usr-0-20071106-vol${DUMP_VOLUME}.dump' /usr
>
> This splits dump output in DVD-R sized chunks.
completely strange

better

-f file1,file2,file3,.....


(you may type more files than actually needed).

one unneeded extra pipe avoided.

if you use pipe, use with growisofs.

BUT with DVD+RW disks you may use /dev/cd0 directly as dump device