From owner-freebsd-questions@FreeBSD.ORG  Thu Jan  9 04:04:25 2014
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 34434B6B
 for <freebsd-questions@freebsd.org>; Thu,  9 Jan 2014 04:04:25 +0000 (UTC)
Received: from mail-we0-x236.google.com (mail-we0-x236.google.com
 [IPv6:2a00:1450:400c:c03::236])
 (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits))
 (No client certificate requested)
 by mx1.freebsd.org (Postfix) with ESMTPS id C2FF913E1
 for <freebsd-questions@freebsd.org>; Thu,  9 Jan 2014 04:04:24 +0000 (UTC)
Received: by mail-we0-f182.google.com with SMTP id q59so2227157wes.41
 for <freebsd-questions@freebsd.org>; Wed, 08 Jan 2014 20:04:23 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
 h=mime-version:sender:in-reply-to:references:date:message-id:subject
 :from:to:cc:content-type;
 bh=HUa2uR8wgCcUiGP3VNv6IB9WebhT1WgNrSGjKxiM/mc=;
 b=PUmDX8p6Xga7gmaGxgjf62HlIaGXYgWGQcmbx4rlD2kgzQTTEu1T5tU60hKAd8ZOnv
 owfCDR02aB4J/kYhrrEekLE92tdgs8lw8hZ2cVM8LxGVIPmWgbMeuEhA7beCAkgpAqmQ
 0bLezrKSaktQ4uKv+TD2mfPWgowo9yqXpqAt7n6rV4ynd79yGyOXfIiFbL21Db0tOsAE
 WUHCJqVHmus1ghIPD0U3mmfa1Ll3bXU6TZ/DSQUGI0WQWBSkZbYtE121ytfmotG01o4W
 nUAkFGE9PZqfyy8osa2n5Y9m7POOQb4BnoAuh6r95hk2R/tgMP4EJ5qy2qESZSXNln9C
 08tA==
MIME-Version: 1.0
X-Received: by 10.194.175.202 with SMTP id cc10mr683242wjc.48.1389240263230;
 Wed, 08 Jan 2014 20:04:23 -0800 (PST)
Sender: olivier2553@gmail.com
Received: by 10.216.82.70 with HTTP; Wed, 8 Jan 2014 20:04:23 -0800 (PST)
In-Reply-To: <CALeO_hNNtvwsDqjiReZpy-s=0Po8JD9xzv0z6W6rDddcAR=QxA@mail.gmail.com>
References: <CALeO_hNNtvwsDqjiReZpy-s=0Po8JD9xzv0z6W6rDddcAR=QxA@mail.gmail.com>
Date: Thu, 9 Jan 2014 11:04:23 +0700
X-Google-Sender-Auth: hI-bxS3ux-uiz9IpGwQpYgrH840
Message-ID: <CA+g+Bvj5_kw3yDWrfv-a-m6CBVtZvU+YoOWp+5VCD2skG7pX5Q@mail.gmail.com>
Subject: Re: Server Hang
From: Olivier Nicole <olivier.nicole@cs.ait.ac.th>
To: eras mus <erasmu@gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org>
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-questions>, 
 <mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions/>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
 <mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 09 Jan 2014 04:04:25 -0000

> Is it possible to take such a mirror copy of such a  hard disk so that i
> can replace it as a hot swap. I request all of your expertise. How to do
> hot swap?please shed some light on it.

Not only it's possible, but it is really simple, just tar(1) each file
system one at a time to the new hard disk.

When the existing hard disk fails, install the new one in the machine
and boot from it.

Or better, once you are done with copying, just boor from the new disk
and throw away the old one.

Olivier