From owner-freebsd-questions@FreeBSD.ORG  Mon May 14 21:11:08 2007
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
X-Original-To: freebsd-questions@freebsd.org
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id 2149A16A402
	for <freebsd-questions@freebsd.org>;
	Mon, 14 May 2007 21:11:08 +0000 (UTC)
	(envelope-from freebsd@sopwith.solgatos.com)
Received: from schitzo.solgatos.com
	(pool-71-117-239-32.ptldor.fios.verizon.net [71.117.239.32])
	by mx1.freebsd.org (Postfix) with ESMTP id F35F013C457
	for <freebsd-questions@freebsd.org>;
	Mon, 14 May 2007 21:11:05 +0000 (UTC)
	(envelope-from freebsd@sopwith.solgatos.com)
Received: from schitzo.solgatos.com (localhost.home.localnet [127.0.0.1])
	by schitzo.solgatos.com (8.13.8/8.13.8) with ESMTP id l4ELB5hO019467
	for <freebsd-questions@freebsd.org>; Mon, 14 May 2007 14:11:05 -0700
Received: from sopwith.solgatos.com (uucp@localhost)
	by schitzo.solgatos.com (8.13.8/8.13.4/Submit) with UUCP id
	l4ELB5fT019458
	for freebsd-questions@freebsd.org; Mon, 14 May 2007 14:11:05 -0700
Received: from localhost by sopwith.solgatos.com (8.8.8/6.24)
	id UAA04399; Mon, 14 May 2007 20:41:29 GMT
Message-Id: <200705142041.UAA04399@sopwith.solgatos.com>
To: freebsd-questions@freebsd.org
In-reply-to: Your message of "Mon, 14 May 2007 20:23:28 +0200."
	<4648A920.3000302@infidyne.com> 
Date: Mon, 14 May 2007 13:41:29 +0100
From: Dieter <freebsd@sopwith.solgatos.com>
Subject: Re: Stable many-port SATA controller recommendations 
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 14 May 2007 21:11:08 -0000

> > If I use up a slot, I'd like at least 4 ports and NCQ.
> > If FreeBSD doesn't have NCQ support yet I might just get a
> > USB or FW to SATA adapter or two and wait for NCQ.
> 
> NCQ is nice but I don't *really* care. I just want something that works
> at all :) Of course I would want NCQ if it was a performance critical
> production system though. And AFAIK NCQ is not yet supported in FreeBSD.

Problem is that to avoid scrambled filesystems you have to put the disk's
cache in write-through mode, and write performance drops 90%.  NCQ should
fix that.