From owner-freebsd-geom@FreeBSD.ORG Thu Aug 4 10:44:09 2011 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id F01E0106566B for ; Thu, 4 Aug 2011 10:44:09 +0000 (UTC) (envelope-from prvs=11971cf4bd=killing@multiplay.co.uk) Received: from mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) by mx1.freebsd.org (Postfix) with ESMTP id 767B08FC08 for ; Thu, 4 Aug 2011 10:44:09 +0000 (UTC) X-MDAV-Processed: mail1.multiplay.co.uk, Thu, 04 Aug 2011 11:32:24 +0100 X-Spam-Processed: mail1.multiplay.co.uk, Thu, 04 Aug 2011 11:32:24 +0100 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on mail1.multiplay.co.uk X-Spam-Level: X-Spam-Status: No, score=-5.0 required=6.0 tests=USER_IN_WHITELIST shortcircuit=ham autolearn=disabled version=3.2.5 Received: from r2d2 ([188.220.16.49]) by mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) (MDaemon PRO v10.0.4) with ESMTP id md50014462984.msg for ; Thu, 04 Aug 2011 11:32:24 +0100 X-MDRemoteIP: 188.220.16.49 X-Return-Path: prvs=11971cf4bd=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: "Dmitry Zamaruyev" , References: <20110804130014.0df63364@ghost.kharkov.zoral.com.ua> Date: Thu, 4 Aug 2011 11:33:01 +0100 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original 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 V6.00.2900.6109 Cc: Subject: Re: SSD and gmirror X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Aug 2011 10:44:10 -0000 Be aware that you need to be using ata or another driver which supports this for it to work even on a standard disk. ----- Original Message ----- From: "Dmitry Zamaruyev" > Hello list, > > I'm looking for clarification regarding gmirror/geom behavior in > current 8-STABLE. > I want to use couple of SSD drives in mirror RAID configuration with > UFS on top. I know that UFS now supports TRIM (BIO_DELETE) on plain > disks. > But will gmirror propagate BIO_DELETE event to lower driver, so both > SSDs will get trimmed when UFS issue this command? ================================================ 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.