From owner-freebsd-scsi@FreeBSD.ORG Mon May 9 18:27:14 2011 Return-Path: Delivered-To: scsi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E3B67106564A for ; Mon, 9 May 2011 18:27:14 +0000 (UTC) (envelope-from mike@reifenberger.com) Received: from mail-out.m-online.net (mail-out.m-online.net [212.18.0.10]) by mx1.freebsd.org (Postfix) with ESMTP id 73F018FC13 for ; Mon, 9 May 2011 18:27:14 +0000 (UTC) Received: from frontend1.mail.m-online.net (frontend1.mail.intern.m-online.net [192.168.8.180]) by mail-out.m-online.net (Postfix) with ESMTP id 31BC6186DED0; Mon, 9 May 2011 20:27:13 +0200 (CEST) Received: from localhost (dynscan1.mnet-online.de [192.168.8.164]) by mail.m-online.net (Postfix) with ESMTP id 6F9FF1C000A8; Mon, 9 May 2011 20:27:13 +0200 (CEST) X-Virus-Scanned: amavisd-new at mnet-online.de Received: from mail.mnet-online.de ([192.168.8.180]) by localhost (dynscan1.mail.m-online.net [192.168.8.164]) (amavisd-new, port 10024) with ESMTP id 0mo4Wfy4+J55; Mon, 9 May 2011 20:27:12 +0200 (CEST) Received: from mail.reifenberger.com (ppp-93-104-32-112.dynamic.mnet-online.de [93.104.32.112]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPS; Mon, 9 May 2011 20:27:12 +0200 (CEST) Received: by mail.reifenberger.com (Postfix, from userid 1001) id 41F0D32942; Mon, 9 May 2011 20:27:12 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by mail.reifenberger.com (Postfix) with ESMTP id 3D4FA32941; Mon, 9 May 2011 20:27:12 +0200 (CEST) Date: Mon, 9 May 2011 20:27:12 +0200 (CEST) From: Michael Reifenberger To: "Kenneth D. Merry" In-Reply-To: <20110508232405.GA84267@nargothrond.kdm.org> Message-ID: References: <20110508232405.GA84267@nargothrond.kdm.org> User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: FreeBSD-SCSI Subject: Re: mpt(4) cuts 3TiB drives down to 2TiB X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 May 2011 18:27:15 -0000 On Sun, 8 May 2011, Kenneth D. Merry wrote: > Date: Sun, 8 May 2011 17:24:05 -0600 > From: Kenneth D. Merry > To: Artem Belevich > Cc: Michael Reifenberger , > FreeBSD-SCSI > Subject: Re: mpt(4) cuts 3TiB drives down to 2TiB > > On Sun, May 08, 2011 at 12:31:28 -0700, Artem Belevich wrote: >> On Sun, May 8, 2011 at 5:13 AM, Michael Reifenberger >> wrote: >>> Hi, >>> the manpage of mptutil states that mpt(4) doesn't support volumes greater >>> 2TiB, >>> it suggests to use the disks in JBOD mode. >>> >>> Even this seems only to work for disk with less than 2TiB. >>> >>> When attaching a Hitachi 7k3000 drive on the LSI SAS/SATA ports of a >>> Supermicro X8ST3-F board I only see 4294967294 sectors while I get 976773168 >>> sectors when >>> attaching to the on board SATA ports. >>> >>> This leaves the onboard LSI controller useless for bigger disks. >>> >>> Is there a way to work around this issue? >>> >>> Or is anybody working on enhancing the mpt(4) driver to use the newer API? >> >> According to LSI, it's a 'feature'. Controllers based on >> LSI1068/1068e (X8ST3-F uses LSI 1068E) truncate drive capacity to >> 2TB: >> http://kb.lsi.com/KnowledgebaseArticle16399.aspx > > I have heard from a friend (i.e. I haven't personally confirmed) that the > capacity truncation only applies to SATA drives. If you attach a 3TB SAS > drive, you should be able to see the full capacity. > I can't confirm either since I have no 3TB SAS drives currently. Thanks for hinting! Bye/2 --- Michael Reifenberger Michael@Reifenberger.com http://www.Reifenberger.com