From owner-cvs-src@FreeBSD.ORG Fri Sep 17 18:10:02 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 F3D6516A4CE; Fri, 17 Sep 2004 18:10:01 +0000 (GMT) Received: from darkness.comp.waw.pl (darkness.comp.waw.pl [195.117.238.136]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4415043D1F; Fri, 17 Sep 2004 18:10:01 +0000 (GMT) (envelope-from pjd@darkness.comp.waw.pl) Received: by darkness.comp.waw.pl (Postfix, from userid 1009) id 4F1C0ACAF1; Fri, 17 Sep 2004 20:09:59 +0200 (CEST) Date: Fri, 17 Sep 2004 20:09:59 +0200 From: Pawel Jakub Dawidek To: Brooks Davis Message-ID: <20040917180959.GU30151@darkness.comp.waw.pl> References: <98480.1095438391@critter.freebsd.dk> <414B10FB.9030003@samsco.org> <20040917170302.GT30151@darkness.comp.waw.pl> <20040917171503.GB10367@odin.ac.hmc.edu> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="J5t7AdsM0Crl/DA3" Content-Disposition: inline In-Reply-To: <20040917171503.GB10367@odin.ac.hmc.edu> User-Agent: Mutt/1.4.2i X-PGP-Key-URL: http://people.freebsd.org/~pjd/pjd.asc X-OS: FreeBSD 5.2.1-RC2 i386 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 18:10:02 -0000 --J5t7AdsM0Crl/DA3 Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Sep 17, 2004 at 10:15:03AM -0700, Brooks Davis wrote: +> > 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:) +>=20 +> 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. You mean setup raid0 with md(4) device to get more than 16TB? Sure, at least with gstripe: ragepxe:root:~# diskinfo -v /dev/stripe/foo /dev/stripe/foo 512 # sectorsize 2111062324805632 # mediasize in bytes (1.9P) 4123168603136 # mediasize in sectors ragepxe:root:~# gstripe list Geom name: foo State: UP Status: Total=3D128, Online=3D128 Type: AUTOMATIC Stripesize: 4096 ID: 2239096935 Providers: 1. Name: stripe/foo Mediasize: 2111062324805632 (1.9P) Sectorsize: 512 Mode: r0w0e0 Consumers: 1. Name: md0 Mediasize: 16492674416640 (15T) Sectorsize: 512 Mode: r0w0e0 Number: 0 [...] 128. Name: md127 Mediasize: 16492674416640 (15T) Sectorsize: 512 Mode: r0w0e0 Number: 127 1.9 Petabytes will be enough?:) Hehe, great fun BTW.:) --=20 Pawel Jakub Dawidek http://www.FreeBSD.org pjd@FreeBSD.org http://garage.freebsd.pl FreeBSD committer Am I Evil? Yes, I Am! --J5t7AdsM0Crl/DA3 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFBSyh3ForvXbEpPzQRAiovAKCLehhcYUSTOss7zocqTDJ0s2mDNACgyY7o +bDoL8I55tR5uVJjmR0aN1c= =Xdjt -----END PGP SIGNATURE----- --J5t7AdsM0Crl/DA3--