From owner-freebsd-stable@FreeBSD.ORG Tue Feb 20 14:28:57 2007 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 767E816A98C for ; Tue, 20 Feb 2007 14:17:14 +0000 (UTC) (envelope-from pj@smo.de) Received: from ilk.de (mx-out09.ilk.de [194.121.104.9]) by mx1.freebsd.org (Postfix) with ESMTP id EE98613C4BA for ; Tue, 20 Feb 2007 14:17:13 +0000 (UTC) (envelope-from pj@smo.de) Received: from bologna.intern.smo.de (pool19.ka.ilk.net [212.86.194.19]) by ilk.de (8.13.4/8.13.4/ilk-relay) with ESMTP id l1KD7INK029763; Tue, 20 Feb 2007 14:07:21 +0100 Received: from [192.168.153.208] (herdubreid.intern.smo.de [192.168.153.208]) by bologna.intern.smo.de (8.13.4+Sun/8.13.4) with ESMTP id l1KD5oVs024625; Tue, 20 Feb 2007 14:05:50 +0100 (CET) Message-ID: <45DAF258.4000809@smo.de> Date: Tue, 20 Feb 2007 14:06:32 +0100 From: Philipp Ost User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.13) Gecko/20070120 X-Accept-Language: de, en-us, en MIME-Version: 1.0 To: Volker References: <45D9FD35.6040702@vwsoft.com> In-Reply-To: <45D9FD35.6040702@vwsoft.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-stable@freebsd.org Subject: Re: getting garbage faster using FreeBSD? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Feb 2007 14:28:57 -0000 Volker wrote: > For my dentist I'm currently in the process of destroying some tape > cartridges (SLR7) and also two hard disks (147G SCSI). [snipped] > Is there any chance to speed up /dev/random? Would a hifn > accelerator card help here to get FreeBSD produce garbage faster? > > As there is medical data on all media I really need garbage > (/dev/zero wouldn't be enough for data security as this might get > recovered). You could use DBAN [0] to wipe the data, at least on the disks ;) That also takes some time (depends on the method you choose) but it's worth it... HTH, Philipp [0] http://dban.sourceforge.net/ -- www.familie-ost.info/~pj