From owner-freebsd-fs@FreeBSD.ORG Mon Aug 13 09:06:56 2012 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 66F811065676 for ; Mon, 13 Aug 2012 09:06:56 +0000 (UTC) (envelope-from prvs=15723815ec=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 E453E8FC0A for ; Mon, 13 Aug 2012 09:06:55 +0000 (UTC) X-Spam-Processed: mail1.multiplay.co.uk, Mon, 13 Aug 2012 10:06:33 +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 md50021208415.msg for ; Mon, 13 Aug 2012 10:06:33 +0100 X-MDRemoteIP: 188.220.16.49 X-Return-Path: prvs=15723815ec=killing@multiplay.co.uk X-Envelope-From: killing@multiplay.co.uk X-MDaemon-Deliver-To: freebsd-fs@freebsd.org Message-ID: <8AD82250A4D6491FB6E5E5EE17F2167D@multiplay.co.uk> From: "Steven Hartland" To: "Petri Helenius" References: <48610.1344847476@critter.freebsd.dk> <66DF83E4BF514482A094F6F61E24752B@multiplay.co.uk> <8A6340E3-87B4-45EC-B4B2-8E705FE934E8@helenius.fi> Date: Mon, 13 Aug 2012 10:06:53 +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 V6.00.2900.6157 Cc: freebsd-fs@freebsd.org, Poul-Henning Kamp Subject: Re: zero deleted blocks X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 13 Aug 2012 09:06:56 -0000 ----- Original Message ----- From: "Petri Helenius" > Obviously the most elegant way would be for KVM, Xen and > VMware to support TRIM/UNMAP... Indeed, I believe as thats exactly what thin provisioning (unmap) was designed for. 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.