From owner-freebsd-stable@FreeBSD.ORG Thu Jan 29 09:19:57 2009 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 0CC5C106564A for ; Thu, 29 Jan 2009 09:19:57 +0000 (UTC) (envelope-from spork@bway.net) Received: from xena.bway.net (xena.bway.net [216.220.96.26]) by mx1.freebsd.org (Postfix) with ESMTP id A232F8FC16 for ; Thu, 29 Jan 2009 09:19:56 +0000 (UTC) (envelope-from spork@bway.net) Received: (qmail 98163 invoked by uid 0); 29 Jan 2009 08:53:15 -0000 Received: from unknown (HELO toasty.nat.fasttrackmonkey.com) (spork@96.57.144.66) by smtp.bway.net with (DHE-RSA-AES256-SHA encrypted) SMTP; 29 Jan 2009 08:53:15 -0000 Date: Thu, 29 Jan 2009 03:53:14 -0500 (EST) From: Charles Sprickman X-X-Sender: spork@toasty.nat.fasttrackmonkey.com To: freebsd-stable@freebsd.org Message-ID: User-Agent: Alpine 2.00 (OSX 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII Subject: 7.1, mpt and slow writes 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, 29 Jan 2009 09:19:57 -0000 Hello, I think this needs a few more eyes: http://lists.freebsd.org/pipermail/freebsd-scsi/2009-January/003782.html In short, writes are slow, likely do to the write-cache being enabled on the controller. The sysctl used in 6.x to turn the cache off don't seem to be in 7.x. Thanks, Charles ___ Charles Sprickman NetEng/SysAdmin Bway.net - New York's Best Internet - www.bway.net spork@bway.net - 212.655.9344