From owner-freebsd-geom@FreeBSD.ORG Thu Apr 22 16:37:17 2010 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 40E91106566C; Thu, 22 Apr 2010 16:37:17 +0000 (UTC) (envelope-from amvandemore@gmail.com) Received: from mail-qy0-f181.google.com (mail-qy0-f181.google.com [209.85.221.181]) by mx1.freebsd.org (Postfix) with ESMTP id D57BE8FC1D; Thu, 22 Apr 2010 16:37:16 +0000 (UTC) Received: by qyk11 with SMTP id 11so10055519qyk.13 for ; Thu, 22 Apr 2010 09:37:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:received:message-id:subject:from:to:cc:content-type; bh=gNu0EiWqpe7D+ilHMvabNJl8muhm4mrrsUTLqPvpLMQ=; b=qIXnmeM9T9i0PCEpWaOPrRB/3z8l0zQsT2+dZcBdeI3p1+q53QbYi/W2xrP3BhphRB ehcTJLvdOP2NX7sApTjZx5NfiLpAkFw8xG4YY+ggQzjWjOwHr7ADBK4RUv4EG+w1Ec1R xYpUBx/HEuJcSMklFOmRHEFKs6RfWVVwOucac= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=C6D4JZsHi8wC44yWD0qu8G/Rn2QMsmNmpQY+NsH9FPiN9CTeUK0p41PBk/EaAvUc4Q HFkfMp/M+26K5NRIb/lDzuWvHQPSkBHcMYHmkxySZHjdZOJ1/vxoQbVEF/+qhn3O6NSC FLkmQt1wFP77d6yOZMk7taQjQv1zqYEXCKGcA= MIME-Version: 1.0 Received: by 10.229.99.67 with HTTP; Thu, 22 Apr 2010 09:37:15 -0700 (PDT) In-Reply-To: <4BD07863.4020106@elischer.org> References: <4BD06BD9.6030401@FreeBSD.org> <4BD07863.4020106@elischer.org> Date: Thu, 22 Apr 2010 11:37:15 -0500 Received: by 10.229.227.83 with SMTP id iz19mr1241714qcb.44.1271954235855; Thu, 22 Apr 2010 09:37:15 -0700 (PDT) Message-ID: From: Adam Vande More To: Julian Elischer Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-current@freebsd.org, Freddie Cash , freebsd-geom@freebsd.org Subject: Re: Switchover to CAM ATA? X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Apr 2010 16:37:17 -0000 On Thu, Apr 22, 2010 at 11:25 AM, Julian Elischer wrote: > just one little fly in that ointment... booting. > > You need to be able to act with the raid in the same way the bios does > or you can't boot. I don't think geom would easlily do that but I could be > wrong. Certainly if you treat teh ata raid as just a bunch of striped disks, > then the bios will not be able to boot off it. > > of course don't take my word too seriosly asn I'm not running an ata raid > system at the moment. > gmirror booting works great only thing to change is fstab to reflect block dev changes, gstripe doesn't. I honestly wasn't aware ataraid could boot a striped volume, if so it does something geom can't. -- Adam Vande More