Date: Fri, 18 May 2007 11:34:52 -0400 From: "Brian A. Seklecki" <bseklecki@collaborativefusion.com> To: Tom Evans <tevans.uk@googlemail.com> Cc: freebsd-stable@freebsd.org Subject: Re: Native SATA vs. PATA-emulation - difference? Message-ID: <1179502492.41472.226.camel@soundwave.pgh.priv.collaborativefusion.com> In-Reply-To: <1179501936.1234.3.camel@zoot.mintel.co.uk> References: <20070518090435.GB17241@hugo10.ka.punkt.de> <1179500233.41472.220.camel@soundwave.pgh.priv.collaborativefusion.com> <1179501936.1234.3.camel@zoot.mintel.co.uk>
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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 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 -- Brian A. Seklecki <bseklecki@collaborativefusion.com> Collaborative Fusion, Inc. IMPORTANT: This message contains confidential information and is intended only for the individual named. If the reader of this message is not an intended recipient (or the individual responsible for the delivery of this message to an intended recipient), please be advised that any re-use, dissemination, distribution or copying of this message is prohibited. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system.
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