From owner-freebsd-fs@FreeBSD.ORG Sat May 21 07:32:10 2011 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 DBE27106566C for ; Sat, 21 May 2011 07:32:10 +0000 (UTC) (envelope-from phk@critter.freebsd.dk) Received: from phk.freebsd.dk (phk.freebsd.dk [130.225.244.222]) by mx1.freebsd.org (Postfix) with ESMTP id 9D74F8FC15 for ; Sat, 21 May 2011 07:32:10 +0000 (UTC) Received: from critter.freebsd.dk (critter-phk.freebsd.dk [192.168.48.2]) by phk.freebsd.dk (Postfix) with ESMTP id 7264F5E10; Sat, 21 May 2011 07:13:35 +0000 (UTC) Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.14.4/8.14.4) with ESMTP id p4L7DZCf006807; Sat, 21 May 2011 07:13:35 GMT (envelope-from phk@critter.freebsd.dk) To: grarpamp From: "Poul-Henning Kamp" In-Reply-To: Your message of "Sat, 21 May 2011 02:39:59 -0400." Content-Type: text/plain; charset=ISO-8859-1 Date: Sat, 21 May 2011 07:13:35 +0000 Message-ID: <6806.1305962015@critter.freebsd.dk> Sender: phk@critter.freebsd.dk Cc: freebsd-fs@freebsd.org Subject: Re: Write reallocator 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: Sat, 21 May 2011 07:32:10 -0000 In message , grarpamp write s: >I've got a disk that I'd like to excercise in order to >see if it will reallocate marginal reads when >written to. Normally I'd just zero the thing, >destroy and toss it. But I feel like playing more. >Because the data is still semi valuable, I want to >read and write back every block of the disk. >Any tools that will do this? Recoverdisk ? -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.