From owner-freebsd-geom@FreeBSD.ORG Thu Jan 9 11:28:09 2014 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 324F389B for ; Thu, 9 Jan 2014 11:28:09 +0000 (UTC) Received: from mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id BB49419E6 for ; Thu, 9 Jan 2014 11:28:08 +0000 (UTC) Received: from r2d2 ([82.69.141.170]) by mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) (MDaemon PRO v10.0.4) with ESMTP id md50007484059.msg for ; Thu, 09 Jan 2014 11:27:59 +0000 X-Spam-Processed: mail1.multiplay.co.uk, Thu, 09 Jan 2014 11:27:59 +0000 (not processed: message from valid local sender) X-MDDKIM-Result: neutral (mail1.multiplay.co.uk) X-MDRemoteIP: 82.69.141.170 X-Return-Path: prvs=1086c5d11c=killing@multiplay.co.uk X-Envelope-From: killing@multiplay.co.uk X-MDaemon-Deliver-To: freebsd-geom@freebsd.org Message-ID: From: "Steven Hartland" To: "Miroslav Lachman" <000.fbsd@quip.cz>, "Jia-Shiun Li" References: <52A90049.7050001@quip.cz> <18C59233568D3A475FF0D843@study64.tdx.co.uk> <52CB2915.7060602@quip.cz> <7FBCC53840FA45928B9F527EA235B632@multiplay.co.uk> <52CB4C9E.3020904@quip.cz> <41F7CA403B574953B72B6CF4D1DDE71D@multiplay.co.uk> <52CBEE9E.2090800@quip.cz> <353E7C512D234EDE84863C872D7856DE@multiplay.co.uk> <52CD67F7.2060608@quip.cz> <9EFFBE4E8F3D4B9EA73C028247D15BD6@multiplay.co.uk> <52CDCB7A.20608@quip.cz> <52CE74BC.9000606@quip.cz> Subject: Re: Is TRIM working with gmirror? Date: Thu, 9 Jan 2014 11:28:11 -0000 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 Cc: Karl Pielorz , freebsd-geom@freebsd.org X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 Jan 2014 11:28:09 -0000 ----- Original Message ----- From: "Miroslav Lachman" <000.fbsd@quip.cz> > Jia-Shiun Li wrote: >> On Thu, Jan 9, 2014 at 6:04 AM, Miroslav Lachman<000.fbsd@quip.cz> wrote: >>> Steven Hartland wrote: >>> It is production server, so I can't play with it and try 10.x, but we are >>> running some other servers on 9.2, so if 9.2 gmirror has support for TRIM, I >>> can upgrade this server to 9.2. >> >> According to release notes, gmirror TRIM is supported since 9.1R. >> >> I did a little test on 9.2R livecd environment with commands you >> stated in previous mail. Both amd64& i386 work. 2 md devices were >> used as backend device, but it should not differ since gmirror reports >> 'candelete' attribute regardless of backend capability. >> >> The above seem to conflict with your result on 9.2 test machines. >> Could you confirm that? Maybe there's something missing. > > The machine with SSD disks and TRIM on gmirror is running FreeBSD 8.4, > not 9.2. > It is strange anyway, because 8.4R is 6 month newer than 9.1R and has > many improvements over 9.1R (for example ZFS feature flags). > So if 9.1R has support for TRIM in gmirror, it can be expected in 8.4 too. > > Thank you for detailed explanation. I will try upgrade to 9.2 soon. Looks like the geom changes where just never MFC'ed back to 8 so its not in any of the 8 releases. Regards Steve ================================================ This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it. In the event of misdirection, illegible or incomplete transmission please telephone +44 845 868 1337 or return the E.mail to postmaster@multiplay.co.uk.