From owner-freebsd-hardware@FreeBSD.ORG  Fri Feb 12 15:59:57 2010
Return-Path: <owner-freebsd-hardware@FreeBSD.ORG>
Delivered-To: freebsd-hardware@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id CA7B11065670
	for <freebsd-hardware@freebsd.org>;
	Fri, 12 Feb 2010 15:59:57 +0000 (UTC)
	(envelope-from cowens@greatbaysoftware.com)
Received: from portcityhosting.com (bayringfw.portcityweb.com [64.140.243.92])
	by mx1.freebsd.org (Postfix) with ESMTP id 75F558FC18
	for <freebsd-hardware@freebsd.org>;
	Fri, 12 Feb 2010 15:59:57 +0000 (UTC)
Received: from [127.0.0.1] ([173.14.128.81]) by portcityhosting.com with
	MailEnable ESMTP; Fri, 12 Feb 2010 10:59:59 -0500
Message-ID: <4B757C07.7070302@greatbaysoftware.com>
Date: Fri, 12 Feb 2010 11:04:23 -0500
From: Charles Owens <cowens@greatbaysoftware.com>
MIME-Version: 1.0
To: Ivan Voras <ivoras@freebsd.org>
References: <4B7484D8.2080406@greatbaysoftware.com>
	<hl3mmi$t2l$1@ger.gmane.org>
In-Reply-To: <hl3mmi$t2l$1@ger.gmane.org>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
X-WatchGuard-AntiVirus: part scanned. clean action=allow
X-ME-Bayesian: 0.000000
Cc: freebsd-hardware@freebsd.org
Subject: Re: mptutil(8) causes VMware VM to crash hard
X-BeenThere: freebsd-hardware@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: General discussion of FreeBSD hardware <freebsd-hardware.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hardware>, 
	<mailto:freebsd-hardware-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hardware>
List-Post: <mailto:freebsd-hardware@freebsd.org>
List-Help: <mailto:freebsd-hardware-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hardware>, 
	<mailto:freebsd-hardware-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 12 Feb 2010 15:59:57 -0000

Ivan Voras wrote:
> On 02/11/10 23:29, Charles Owens wrote:
>> Hello,
>>
>> We've been doing some work with mpt(4) and mptutil(8).  We noticed that
>> in VMware (both Workstation and ESX) the SCSI controller is showing up
>> as mpt0... so it seemed only natural to probe it with mptutil.  For
> 
> Which is probably useless as you can't exactly diagnose a virtual drive :)


Well, not quite useless:  consider the possibility of a customized CD
with install script that can be run on a number of platforms.  As the
installer runs it notes the presence of /dev/mpt0 and then uses "mptutil
show adapter" and  other commands to determine type of controller, state
of volumes (if appropriate), etc.

A perfectly reasonable use-case, in my opinion.  But, in general, VMware
is an important enough platform that I suggest that mptutil should made
to play nice.