Date: Tue, 2 May 2006 09:34:10 +0930 From: Greg 'groggy' Lehey <grog@FreeBSD.org> To: Jim Stapleton <stapleton.41@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: dd issues Message-ID: <20060502000409.GZ81777@wantadilla.lemis.com> In-Reply-To: <80f4f2b20605011644r87563a0r9141d4a62a28b98b@mail.gmail.com> References: <80f4f2b20605011644r87563a0r9141d4a62a28b98b@mail.gmail.com>
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--alCHniwhwUTljuKz Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Monday, 1 May 2006 at 19:44:00 -0400, Jim Stapleton wrote: > I'm trying to back up some of my software, and I'm having some > problems, I found something in the archives specifying the need to set > a block size of 2k or greater. This makes a backup (I've not tested it > yet). > > My questions are: > (1) Why does this work? Why shouldn't it? > (2) Is it possible that not using the default/found block size will > cause issues? Yes. Without more background in what you're trying to do (you don't even say what backup program or what medium you're trying to back up to), or what your concerns are, it's difficult to answer this question. There are no specific issues with block size on most archivers, but in general large block sizes (64 kB or larger) will give better performance. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply or reply to the original recipients. For more information, see http://www.lemis.com/questions.html See complete headers for address and phone numbers. --alCHniwhwUTljuKz Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQFEVqH5IubykFB6QiMRAsWFAJ97ngRP1C2rS3FU1+fPdT7z74WKswCggFWU uWnNR6E3jL6Y7Kzp4jHwDRQ= =OAjZ -----END PGP SIGNATURE----- --alCHniwhwUTljuKz--
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