Date: Fri, 11 Jun 2004 09:34:52 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: Lukas Ertl <le@freebsd.org> Subject: Re: Correct GEOM bio handling Message-ID: <20040611073452.GB12007@darkness.comp.waw.pl> In-Reply-To: <65669.1086898388@critter.freebsd.dk> References: <20040610214726.G23746@leelou.in.tern> <65669.1086898388@critter.freebsd.dk>
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--BYl/BInBdgsQr4gH Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Jun 10, 2004 at 10:13:08PM +0200, Poul-Henning Kamp wrote: +> Some implementations use compressed bitmaps, so that they know that +> bits where a normal write happened can be skipped by the rebuilder. I'm using bitmaps to do sychronization in geom_mirror. It works quite ok. +> Some even use "parasitic rebuild" where normal reads are written +> to the bad plex as well (if not already up to date) in order to +> save on the I/O operations. Nice idea, I need to put it into geom_mirror:) --=20 Pawel Jakub Dawidek http://www.FreeBSD.org pjd@FreeBSD.org http://garage.freebsd.pl FreeBSD committer Am I Evil? Yes, I Am! --BYl/BInBdgsQr4gH Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFAyWCcForvXbEpPzQRAnetAJ9FaL88kZiYdol88E93o6ox8biZVgCfUUn4 CWHbjaD74UuV7UO/anTgX8E= =xLBr -----END PGP SIGNATURE----- --BYl/BInBdgsQr4gH--
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