From owner-freebsd-fs@freebsd.org Wed Sep 23 05:43:53 2015 Return-Path: Delivered-To: freebsd-fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 783DAA07BA4 for ; Wed, 23 Sep 2015 05:43:53 +0000 (UTC) (envelope-from michael@fuckner.net) Received: from mo6-p00-ob.smtp.rzone.de (mo6-p00-ob.smtp.rzone.de [IPv6:2a01:238:20a:202:5300::11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.smtp.rzone.de", Issuer "TeleSec ServerPass DE-2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 1608412D0 for ; Wed, 23 Sep 2015 05:43:52 +0000 (UTC) (envelope-from michael@fuckner.net) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1442987029; l=867; s=domk; d=fuckner.net; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:MIME-Version: Date:From:References:To:Subject; bh=Qzq2rZevPRQfaWpKMtrwR0ZWUcp42/2MxbOy8lUZLw8=; b=pYpSYDB0gwbAC24zuVmTJIAUWm9+zX/o4XKhMtIuHokmDg/oy39sH6xtt6eMl2MU+54 gtwGrlXSJc51Kit/VjekEZqHvI2jDnrduDH/AT2XxiyMxpI4EWXfXKfJIQf4iiTIE+hCp 4BrqjdrVnx1Tteyz/yyHfPeHqySe4KBo9ag= X-RZG-AUTH: :IWUHfUGtd9+6EujMWHx57N4dWae4bmTL/JIGbzkGUoozgknstV9BEzWRmW1WTNAldMQ9WrX0XNX2YqcutSnrNOxNOjrGw3F0LA== X-RZG-CLASS-ID: mo00 Received: from [IPv6:2a02:2028:53f:9001:1c46:b4db:2412:9ab7] (some-ipv6-address.wtnet.de [IPv6:2a02:2028:53f:9001:1c46:b4db:2412:9ab7]) by smtp.strato.de (RZmta 37.12 AUTH) with ESMTPSA id 204cbdr8N5hm0IN (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA (curve secp521r1 with 521 ECDH bits, eq. 15360 bits RSA)) (Client did not present a certificate); Wed, 23 Sep 2015 07:43:48 +0200 (CEST) Subject: Re: Switching from MFI to MRSAS To: Tim Gustafson , freebsd-fs@freebsd.org References: From: Michael Fuckner Message-ID: <56023C15.7080007@fuckner.net> Date: Wed, 23 Sep 2015 07:43:49 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 Sep 2015 05:43:53 -0000 On 9/23/2015 1:26 AM, Tim Gustafson wrote: > As I mentioned in my previous post last week, I have a new Dell R630 > server that uses a Perc controller, and I have installed 4 SSD drives > and configured the PERC controller in pass-through mode. However, the > PERC controller and its drives are being handled by the "mfi" driver, > which apparently does not support TRIM. > > I have been reading up on all this, and I see that there is also an > "mrsas" driver that (according to the documentation) appears to be > compatible with my PERC controller, which is identified as follows: > Hi, mfi is the old driver for 3GBit and 6GBit (Single Core) Raid Cards (102108 based) mrsas is the newer driver for 6GBit (Dual Core) and 12GBit Cards (2208/ 3008 based) Different driver for different LSI Chipsets Sorry to disappoint you, regards, Michael