From owner-freebsd-fs@FreeBSD.ORG Mon Mar 4 10:39:07 2013 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 1B301475 for ; Mon, 4 Mar 2013 10:39:07 +0000 (UTC) (envelope-from daniel@digsys.bg) Received: from smtp-sofia.digsys.bg (smtp-sofia.digsys.bg [193.68.21.123]) by mx1.freebsd.org (Postfix) with ESMTP id 7FF17B07 for ; Mon, 4 Mar 2013 10:39:05 +0000 (UTC) Received: from dcave.digsys.bg (dcave.digsys.bg [192.92.129.5]) (authenticated bits=0) by smtp-sofia.digsys.bg (8.14.6/8.14.6) with ESMTP id r24AcsHk076938 (version=TLSv1/SSLv3 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO) for ; Mon, 4 Mar 2013 12:38:55 +0200 (EET) (envelope-from daniel@digsys.bg) Message-ID: <513479BE.1060109@digsys.bg> Date: Mon, 04 Mar 2013 12:38:54 +0200 From: Daniel Kalchev User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:10.0.12) Gecko/20130125 Thunderbird/10.0.12 MIME-Version: 1.0 To: freebsd-fs@freebsd.org Subject: Re: benefit of GEOM labels for ZFS, was Hard drive device names... serial numbers References: <512FE773.3060903@physics.umn.edu> <5134693B.30408@brockmann-consult.de> In-Reply-To: <5134693B.30408@brockmann-consult.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Mar 2013 10:39:07 -0000 What you do when the disk is dead, and you don't know which one it is in a rather big rack full of disks? Perhaps, you offline each and every disk in the system until you eliminate all but one? :) Hint: all disks die sooner or later. Dnaiel On 04.03.13 11:28, Peter Maloney wrote: > I just use zfs offline, then dd to read the disk, and pull the one that > blinks. :) zfs offline means the disk won't blink ever without me > causing it, so there's no confusion. > > I would only use a labelling system if I could easily label the disks on > the front too, but I don't have small enough labels... the disks have > too much vent space, so I assume the labels would just fall off, block > airflow, and be a hassle. And the servers are local, so dd isn't a problem. > >