From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1OlmzR-0001VG-Ns for garchives@archives.gentoo.org; Wed, 18 Aug 2010 18:03:56 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id E50E8E0879; Wed, 18 Aug 2010 18:03:28 +0000 (UTC) Received: from mail-iw0-f181.google.com (mail-iw0-f181.google.com [209.85.214.181]) by pigeon.gentoo.org (Postfix) with ESMTP id CC9E2E0879 for ; Wed, 18 Aug 2010 18:03:28 +0000 (UTC) Received: by iwn10 with SMTP id 10so941728iwn.40 for ; Wed, 18 Aug 2010 11:03:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:mime-version:sender:received :in-reply-to:references:from:date:x-google-sender-auth:message-id :subject:to:content-type; bh=hhb0nw4nE97LHUGCjZdC9TGZsbMx4yY6irnyGnc378c=; b=JBFjFuy1AWDZXkD+kZBr1epA9sm28NuWNudxpvxz2RKiiwKe01kO8FFEfVpxnZjPjQ r3JY/WDP7r9rpgOzxs7J32m3BWl8bkOHyE/pu0M0QCL9zX/8/q0Gtct3betLzOEXTFFc tcOqBqRn7AqeNNYLzDJQ7DqH2oMUvE3+qE010= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:content-type; b=u1POBhg5NS8XUSTzNwL+wUNUnxe0NIcAO1QvnQjvWTxVympxkpndqOpT3uEre/JH5x QzKoTwJmM21gDSM+XLLLW20S8/s9oBbbq68fXrN4gUkbhlL19QkL1PRAZLGZDsgfxnvN AVLk24983+gCoLCxCvJJv7cDRzJE7IMOXEp34= Received: by 10.231.155.212 with SMTP id t20mr9874909ibw.37.1282154608559; Wed, 18 Aug 2010 11:03:28 -0700 (PDT) Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Sender: fthtmn@gmail.com Received: by 10.231.200.134 with HTTP; Wed, 18 Aug 2010 11:03:08 -0700 (PDT) In-Reply-To: <4C6BF3F0.6070803@gmail.com> References: <4C6A7D23.9030007@gmx.de> <20100818123424.1a1218b4@zaphod.digimed.co.uk> <4C6BF3F0.6070803@gmail.com> From: Nganon Date: Wed, 18 Aug 2010 21:03:08 +0300 X-Google-Sender-Auth: mj4DDwJqX_vf2zuyYsKvxA_W11k Message-ID: Subject: Re: [gentoo-user] How to build a time machine on Gentoo To: gentoo-user@lists.gentoo.org Content-Type: multipart/alternative; boundary=0016369c897afd858d048e1ce1cc X-Archives-Salt: 18d8b6e1-81ec-44c6-8595-9b3e895586b8 X-Archives-Hash: c8877dfbfc79104e71ba7cefa293354c --0016369c897afd858d048e1ce1cc Content-Type: text/plain; charset=ISO-8859-1 On 18 August 2010 17:53, Bill Longman wrote: > On 08/18/2010 04:53 AM, Nganon wrote: > > I did not know that. I was thinking of, in couple of months, buying a > > notebook > > with two HDDs with RAID1 installed and using the usb drive as a backup > > destination. So if RAID got corruped, the backups, made since then, > > would be > > useless? How would you resolve it? > > The ONLY thing RAID will save you from is hardware failure. > > Copying data from one disk to another is not RAID. If you use dd to copy > from one corrupt filesystem to another, you have two corrupt filesystems. > > Clear now, thanks. > If you want a robust filesystem, look into ZFS/BTRFS. > > AFAIK ZFS is unmaintained and BTRFS is not stable, am I wrong? --0016369c897afd858d048e1ce1cc Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable

On 18 August 2010 17:53, Bill Longman <bill.longman@= gmail.com> wrote:
On 08/18/2010 04:53 AM, Nganon wrote:
> I did not know that. I was thinking of, in couple of months, buying a<= br> > notebook
> with two HDDs with RAID1 installed and using the usb drive as a backup=
> destination. So if RAID got corruped, the backups, made since then, > would be
> useless? How would you resolve it?

The ONLY thing RAID will save you from is hardware failure.

Copying data from one disk to another is not RAID. If you use dd to copy from one corrupt filesystem to another, you have two corrupt filesystems.
Clear now, thanks.
=A0
If you want a robust filesystem, look into ZFS/BTRFS.


AFAIK ZFS is unmaintained and BTRFS is no= t stable, am I wrong?=A0

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