From owner-freebsd-doc@FreeBSD.ORG Mon Sep 13 22:07:24 2004 Return-Path: Delivered-To: freebsd-doc@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 143DF16A4CE for ; Mon, 13 Sep 2004 22:07:24 +0000 (GMT) Received: from zaphod.nitro.dk (port324.ds1-khk.adsl.cybercity.dk [212.242.113.79]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5B56343D48 for ; Mon, 13 Sep 2004 22:07:23 +0000 (GMT) (envelope-from simon@zaphod.nitro.dk) Received: by zaphod.nitro.dk (Postfix, from userid 3000) id 976E011AB1; Tue, 14 Sep 2004 00:07:21 +0200 (CEST) Date: Tue, 14 Sep 2004 00:07:21 +0200 From: "Simon L. Nielsen" To: Brooks Davis Message-ID: <20040913220721.GF766@zaphod.nitro.dk> References: <20040913202107.GA5175@odin.ac.hmc.edu> <20040913204958.GE766@zaphod.nitro.dk> <20040913211346.GB11005@odin.ac.hmc.edu> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="N1GIdlSm9i+YlY4t" Content-Disposition: inline In-Reply-To: <20040913211346.GB11005@odin.ac.hmc.edu> User-Agent: Mutt/1.5.6i cc: doc@FreeBSD.org Subject: Re: review request: 2TB disk limit in disks chapter X-BeenThere: freebsd-doc@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Documentation project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 13 Sep 2004 22:07:24 -0000 --N1GIdlSm9i+YlY4t Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2004.09.13 14:13:46 -0700, Brooks Davis wrote: > On Mon, Sep 13, 2004 at 10:49:58PM +0200, Simon L. Nielsen wrote: > > On 2004.09.13 13:21:07 -0700, Brooks Davis wrote: > > > > > + &man.bsdlabel.8, &man.disklabel.8, &man.fdisk.8, and > >=20 > > Isn't disklabel just a link to the local label (bsdlabel/sunlabel > > etc.) now? >=20 > The rest of the file seems to list both of them and the limitation > applies to 4.x where there is only disklabel. I don't have a strong > oppinion on this one. Yes, it seems some parts there should be revised wrt. to making bsdlabel the default (and perhaps to document the sunlabel etc. also) but thats for another time... I think there should just be a short note that it's called disklabel in 4.X - I added a suggestion below. > > > + sectors. This usually translates to a 2TB limit on disk size. > > > + For larger disks, &man.gpt.8 partitions may be used. > >=20 > > Shouldn't that be "2TB limits on partition size.", since you can AFAIR? > > make multiple <2TB partitions on one "disk"(/RAID)? >=20 > It's more complicated then that, which means I need to revise this > documentation. In bsdlabel, the size of the disk in sectors is also > recorded capping the format at 2TB. In fdisk, the format appears to > limit the partition size to 2TB and the offset to 2TB so around 4TB. > This doesn't work at the moment because fdisk doesn't correctly use > 64-bit types internally. sunlabel appears to allow up to 16TB disks with > 2TB partitions. Ok, fun fun :-/. > Index: chapter.sgml > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > RCS file: /home/dcvs/doc/en_US.ISO8859-1/books/handbook/disks/chapter.sgm= l,v > retrieving revision 1.220 > diff -u -p -r1.220 chapter.sgml > --- chapter.sgml 25 Aug 2004 10:33:59 -0000 1.220 > +++ chapter.sgml 13 Sep 2004 21:12:20 -0000 > @@ -202,6 +202,15 @@ > case, the drive will be added simply as > /dev/da1e. > =20 > + Due to the use of 32-bit integers to store the number of secto= rs > + &man.bsdlabel.8; is limited to 2^32-1 sectors per disk or 2TB Perhaps "&man.bsdlabel.8; (called &man.disklabel.8; in &os; 4.X) is..." > + in most cases. The &man.fdisk.8; format is allows a starting ^^ that should probably b= e removed. > + sector of no more than 2^32-1 and a length of no more than 2^32-1, > + limiting partitions to 2TB and disks to 4TB in most cases. The > + &man.sunlabel.8; format is limited to 2^32-1 sectors per parition s/parition/partition/ > + and 8 partitions for a total of 16TB. larger disks, &man.gpt.8 s/. larger/. For larger/ and a missing ; in the entity. > + partitions may be used. > + OK, I think I'm done playing doc pendant today ;). --=20 Simon L. Nielsen FreeBSD Documentation Team --N1GIdlSm9i+YlY4t Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (FreeBSD) iD8DBQFBRhoZh9pcDSc1mlERArUoAJwMzpDI5RVAOuYbcMFOjOjmJ7G5vwCeMPtF L2p1kZdNLoOAdW2pBw6cqCI= =t8RE -----END PGP SIGNATURE----- --N1GIdlSm9i+YlY4t--