From owner-freebsd-stable@FreeBSD.ORG Thu Jul 22 08:14:07 2010 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 B8253106564A for ; Thu, 22 Jul 2010 08:14:07 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from qmta04.emeryville.ca.mail.comcast.net (qmta04.emeryville.ca.mail.comcast.net [76.96.30.40]) by mx1.freebsd.org (Postfix) with ESMTP id 98D0E8FC0C for ; Thu, 22 Jul 2010 08:14:07 +0000 (UTC) Received: from omta07.emeryville.ca.mail.comcast.net ([76.96.30.59]) by qmta04.emeryville.ca.mail.comcast.net with comcast id kwE71e0021GXsucA4wE76A; Thu, 22 Jul 2010 08:14:07 +0000 Received: from koitsu.dyndns.org ([98.248.41.155]) by omta07.emeryville.ca.mail.comcast.net with comcast id kwE61e0033LrwQ28UwE6sr; Thu, 22 Jul 2010 08:14:06 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id 101419B425; Thu, 22 Jul 2010 01:14:06 -0700 (PDT) Date: Thu, 22 Jul 2010 01:14:06 -0700 From: Jeremy Chadwick To: Charles Sprickman Message-ID: <20100722081406.GA8483@icarus.home.lan> References: <4C47B57F.5020309@langille.org> <4C47E610.2040409@langille.org> <4C47EC47.5090000@yandex.ru> <4C47ED09.7020808@langille.org> <4C47F4F1.8030804@langille.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) Cc: Adam Vande More , "Andrey V. Elsukov" , freebsd-stable , Dan Langille Subject: Re: Using GTP and glabel for ZFS arrays 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: Thu, 22 Jul 2010 08:14:07 -0000 On Thu, Jul 22, 2010 at 04:03:05AM -0400, Charles Sprickman wrote: > On Thu, 22 Jul 2010, Dan Langille wrote: > >Well, I don't have anything to support hotplug. All my stuff is internal. > > > >http://sphotos.ak.fbcdn.net/hphotos-ak-ash1/hs430.ash1/23778_106837706002537_100000289239443_171753_3508473_n.jpg > > The frankenbox I'm testing on is a retrofitted 1U (it had a scsi > backplane, now has none). > > I am not certain, but I think with 8.1 (which it's running) and all > the cam integration stuff, hotplug is possible. Is a special > backplane required? I seriously don't know... I'm going to give it > a shot though. Yes, a special backplane is required. > Oh, you also might get NCQ. Try: > > [root@h21 /tmp]# camcontrol tags ada0 > (pass0:ahcich0:0:0:0): device openings: 32 NCQ should be enabled by default. "camcontrol identify" will provide much more verbose details about the state of these disks. Don't confuse "identify" with "inquiry". -- | Jeremy Chadwick jdc@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |