From owner-freebsd-stable@FreeBSD.ORG Tue Jul 19 22:17:18 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6C1C31065672 for ; Tue, 19 Jul 2011 22:17:18 +0000 (UTC) (envelope-from kob6558@gmail.com) Received: from mail-yx0-f182.google.com (mail-yx0-f182.google.com [209.85.213.182]) by mx1.freebsd.org (Postfix) with ESMTP id 2A33B8FC08 for ; Tue, 19 Jul 2011 22:17:17 +0000 (UTC) Received: by yxl31 with SMTP id 31so2434084yxl.13 for ; Tue, 19 Jul 2011 15:17:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=kUU6j6wdd9bmGWjiBZllepktfTdniDLfWc+uogVW8UE=; b=sAprrRTUAoNSD3rsuL8DsXLtX8abh3QTZT+Ggu9fwxhn5e/Tcd8TGxfNeeC6NExG5F EHGGtFm8YQE+R3QmOSYDpMq38oE1wc1OxANCFMUXDWiNM6lzvg5q1XGHtY/3AiZ3vc68 PDxgcjru+RYwss02HL0Mtdtw3gJo1aTVrz4XY= MIME-Version: 1.0 Received: by 10.150.164.4 with SMTP id m4mr341968ybe.369.1311113837222; Tue, 19 Jul 2011 15:17:17 -0700 (PDT) Received: by 10.151.27.21 with HTTP; Tue, 19 Jul 2011 15:17:17 -0700 (PDT) In-Reply-To: <20110719214949.GA28709@icarus.home.lan> References: <20110718234124.GA5626@icarus.home.lan> <20110719224126.00000a25@unknown> <20110719214949.GA28709@icarus.home.lan> Date: Tue, 19 Jul 2011 15:17:17 -0700 Message-ID: From: Kevin Oberman To: Jeremy Chadwick Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: Alexander Leidinger , "freebsd-stable@freebsd.org Stable" Subject: Re: Status of support for 4KB disk sectors X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Jul 2011 22:17:18 -0000 On Tue, Jul 19, 2011 at 2:49 PM, Jeremy Chadwick wrote: > On Tue, Jul 19, 2011 at 02:33:27PM -0700, Kevin Oberman wrote: >> On Tue, Jul 19, 2011 at 1:41 PM, Alexander Leidinger >> wrote: >> > On Mon, 18 Jul 2011 16:41:24 -0700 Jeremy Chadwick >> > wrote: >> > >> >> But the currently "known method" is to use gnop(8). ?Here's an >> >> example: >> >> >> >> http://www.leidinger.net/blog/2011/05/03/another-root-on-zfs-howto-op= timized-for-4k-sector-drives/ >> >> >> >> Now, that's for ZFS, but I'm under the impression the exact same is >> >> needed for FFS/UFS. >> > >> > Info: gnop will not work for FFS/UFS because gnop is a temporary >> > solution (needs to be done by hand at each reboot). For FFS/UFS you >> > need to align the slice/partition and chose a good blocksize/fragsize >> > combination (e.g. 32k/4k). >> > >> > Bye, >> > Alexander. >> > >> > -- >> > http://www.Leidinger.net ? ?Alexander @ Leidinger.net: PGP ID =3D B006= 3FE7 >> > http://www.FreeBSD.org ? ? ? netchild @ FreeBSD.org ?: PGP ID =3D 7207= 7137 >> > >> >> Thanks, Alexander. >> >> This is what I had expected after reading the man pages, though I >> would think -b 65560 -f 8192' would be a bit more reasonable in this > =A0 =A0 =A0 =A0 =A0 =A0 =A0^^^^^^^^ > =A0 =A0 =A0 =A0 =A0 =A0 =A0^^^^^^^^ > Where did this number come from? =A0Did you mean 65536? =A065560 would no= t > be properly aligned. Ack! Fingers and brain out of sync. Yes, 65536 is what I meant. >> day of bloated file formats. it's been years since I have hit a >> problem with lack of inodes. Probably around 1993 on an old >> SparcStation 1 running SunOS and then only due to a bad assumption I >> made when 'newfs'ing it. >> >> Again, thanks for the advice. At very least it will save me a bit of tim= e! > > Agreed -- thanks for the advice, Alexander. > > -- > | Jeremy Chadwick =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0= =A0 =A0jdc at parodius.com | > | Parodius Networking =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 http://= www.parodius.com/ | > | UNIX Systems Administrator =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 Mountain= View, CA, US | > | Making life hard for others since 1977. =A0 =A0 =A0 =A0 =A0 =A0 =A0 PGP= 4BD6C0CB | > > --=20 R. Kevin Oberman, Network Engineer - Retired E-mail: kob6558@gmail.com