From owner-cvs-src@FreeBSD.ORG Fri Sep 17 17:13:36 2004 Return-Path: Delivered-To: cvs-src@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8FDC816A4CE; Fri, 17 Sep 2004 17:13:36 +0000 (GMT) Received: from odin.ac.hmc.edu (Odin.AC.HMC.Edu [134.173.32.75]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6B5E743D1F; Fri, 17 Sep 2004 17:13:36 +0000 (GMT) (envelope-from brdavis@odin.ac.hmc.edu) Received: from odin.ac.hmc.edu (localhost.localdomain [127.0.0.1]) by odin.ac.hmc.edu (8.13.0/8.13.0) with ESMTP id i8HHF4Zj012352; Fri, 17 Sep 2004 10:15:04 -0700 Received: (from brdavis@localhost) by odin.ac.hmc.edu (8.13.0/8.13.0/Submit) id i8HHF37W012351; Fri, 17 Sep 2004 10:15:03 -0700 Date: Fri, 17 Sep 2004 10:15:03 -0700 From: Brooks Davis To: Pawel Jakub Dawidek Message-ID: <20040917171503.GB10367@odin.ac.hmc.edu> References: <98480.1095438391@critter.freebsd.dk> <414B10FB.9030003@samsco.org> <20040917170302.GT30151@darkness.comp.waw.pl> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="Bn2rw/3z4jIqBvZU" Content-Disposition: inline In-Reply-To: <20040917170302.GT30151@darkness.comp.waw.pl> User-Agent: Mutt/1.4.1i X-Virus-Scanned: by amavisd-new X-Spam-Status: No, hits=0.0 required=8.0 tests=none autolearn=no version=2.63 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on odin.ac.hmc.edu cc: Scott Long cc: src-committers@FreeBSD.org cc: cvs-src@FreeBSD.org cc: cvs-all@FreeBSD.org cc: Poul-Henning Kamp cc: Robert Watson cc: Giorgos Keramidas cc: Ceri Davies Subject: Re: cvs commit: src/sys/sys mdioctl.h src/sys/dev/md md.c src/sbin/mdconfig Makefile mdconfig.8 mdconfig.c X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Sep 2004 17:13:36 -0000 --Bn2rw/3z4jIqBvZU Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Sep 17, 2004 at 07:03:02PM +0200, Pawel Jakub Dawidek wrote: > On Fri, Sep 17, 2004 at 10:29:47AM -0600, Scott Long wrote: > +> >Uhm, be aware that we are limited also to the size of individual > +> >swap disks. 31 bits of bytes/sectors/pages, not quite sure which. > +> > > +>=20 > +> 32 bits of pages, unless there is somewhere in the chain that the=20 > +> unsigned nature of the word is not being honored. >=20 > Pages. It gives as maximum swap-backed device of 16TB. I tested it with > ~15TB devices, so there is no signed/unsigned problem (which will limit > us to 8TB). Of course you can always (I hope) increase page size:) Given my quick read of the sunlabel format, there would be some value in >16TB (17 would be sufficent) virtual disks. Can we do a RAID0 of these to get something that big? I'm pretty sure sunlabel is limited to 14TB or 16TB so having something too big would be good for testing. -- Brooks --=20 Any statement of the form "X is the one, true Y" is FALSE. PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4 --Bn2rw/3z4jIqBvZU Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQFBSxuXXY6L6fI4GtQRAjx3AJ9Hdn5OMMjBsNj/4Qk2Ggu0q4wLIACgqhhZ f5iHwPOWvkG4/C4GN9Nx8l8= =e5jU -----END PGP SIGNATURE----- --Bn2rw/3z4jIqBvZU--