From owner-freebsd-fs@FreeBSD.ORG Wed May 2 23:33:12 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 4194B1065675 for ; Wed, 2 May 2012 23:33:12 +0000 (UTC) (envelope-from simon@optinet.com) Received: from cobra.acceleratedweb.net (cobra-gw.acceleratedweb.net [207.99.79.37]) by mx1.freebsd.org (Postfix) with SMTP id D0B0F8FC12 for ; Wed, 2 May 2012 23:33:11 +0000 (UTC) Received: (qmail 86976 invoked by uid 110); 2 May 2012 23:33:05 -0000 Received: from ool-4571afe7.dyn.optonline.net (HELO desktop1) (simon@optinet.com@69.113.175.231) by cobra.acceleratedweb.net with SMTP; 2 May 2012 23:33:05 -0000 From: "Simon" To: "freebsd-fs@freebsd.org" , "Daryl Richards" Date: Wed, 02 May 2012 19:33:07 -0400 Priority: Normal X-Mailer: PMMail 2000 Professional (2.20.2717) For Windows 2000 (5.1.2600;3) In-Reply-To: <4FA1BE10.3010200@isletech.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <20120502233312.4194B1065675@hub.freebsd.org> Cc: Subject: Re: Replacing dead drives in ZRAID2 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: Wed, 02 May 2012 23:33:12 -0000 On Wed, 02 May 2012 19:06:56 -0400, Daryl Richards wrote: >One way to simulate a "failure" with ZFS is to use dd to write trash data to the > underlying drive, and then scrub it to detect the errors and have it correct itself. Sure, but to me this is a soft failure: the drive is still powered-on, spinning, responding, etc... this works fine. I was trying to simulate hard failure, drive power failure, motor broke, ECB burnt, etc... with hardware RAID I would just yank the drive out. -Simon