From owner-freebsd-stable@FreeBSD.ORG Fri May 18 15:40:24 2007 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 656EA16A400 for ; Fri, 18 May 2007 15:40:24 +0000 (UTC) (envelope-from lists@jnielsen.net) Received: from ns1.jnielsen.net (ns1.jnielsen.net [69.55.238.237]) by mx1.freebsd.org (Postfix) with ESMTP id 4785D13C448 for ; Fri, 18 May 2007 15:40:24 +0000 (UTC) (envelope-from lists@jnielsen.net) Received: from localhost (jn@ns1 [69.55.238.237]) (authenticated bits=0) by ns1.jnielsen.net (8.12.9p2/8.12.9) with ESMTP id l4IFeKc5044485; Fri, 18 May 2007 11:40:21 -0400 (EDT) (envelope-from lists@jnielsen.net) From: John Nielsen To: freebsd-stable@freebsd.org Date: Fri, 18 May 2007 11:40:06 -0400 User-Agent: KMail/1.9.6 References: <20070518090435.GB17241@hugo10.ka.punkt.de> <1179501936.1234.3.camel@zoot.mintel.co.uk> <1179502492.41472.226.camel@soundwave.pgh.priv.collaborativefusion.com> In-Reply-To: <1179502492.41472.226.camel@soundwave.pgh.priv.collaborativefusion.com> X-Face: #X5#Y*q>F:]zT!DegL3z5Xo'^MN[$8k\[4^3rN~wm=s=Uw(sW}R?3b^*f1Wu*.<=?utf-8?q?of=5F4NrS=0A=09P*M/9CpxDo!D6?=)IY1w<9B1jB; tBQf[RU-R<,I)e"$q7N7 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200705181140.06360.lists@jnielsen.net> X-Virus-Scanned: ClamAV version 0.88.4, clamav-milter version 0.88.4 on ns1.jnielsen.net X-Virus-Status: Clean Cc: Tom Evans , "Brian A. Seklecki" Subject: Re: Native SATA vs. PATA-emulation - difference? 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: Fri, 18 May 2007 15:40:24 -0000 On Friday 18 May 2007 11:34:52 am Brian A. Seklecki wrote: > On Fri, 2007-05-18 at 16:25 +0100, Tom Evans wrote: > > On Fri, 2007-05-18 at 10:57 -0400, Brian A. Seklecki wrote: > > > On Fri, 2007-05-18 at 11:04 +0200, Patrick M. Hausen wrote: > > > > to UDMA33. I figure, they can safely be ignored? > > > > > > Only if there isn't some massive performance degradation. > > > ports/benchmarks/bonie++ can tell you that. > > > > > > As for the boot loader and your gmirror volumes; it's hard to say. > > > It's possible that there is some "absolute" or "non-relative" data in > > > there related to the device and the bus. > > > > > > Also: Maybe the geometry of the devices changes between modes? > > > > > > Send us the comparable dmesg(8) in both modes? > > > > > > ~BAS > > > > On my Intel ICH7 based laptop, switching from SATA/PATA emulation to > > SATA native mode changes the device of my HD from ad0 to ad4. > > > > YMMV > > right which I never understood absolute device number. you can choose > to do that in obsd/nbsd, but fbsd seems to psuedo magically do it. > reminds me Solaris. ~BAS If you don't want this behavior then remove "options ATA_STATIC_ID" from your kernel config. JN