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Date: Thu, 18 Jul 2002 12:27:08 -0300 (BRT)
From: Rik van Riel <riel@conectiva.com.br>
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To: Bill Davidsen <davidsen@tmr.com>
cc: stoffel@lucent.com,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Backups done right (was [ANNOUNCE] Ext3 vs Reiserfs benchmarks)
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On Thu, 18 Jul 2002, Bill Davidsen wrote:
> On Tue, 16 Jul 2002 stoffel@lucent.com wrote:
>
> >   3a. lock mirrored volume, flush any outstanding transactions, break
> >       mirror.
> >                 --or--
> >   3b. snapshot filesystem to another volume.
>
> Good summary. The problem is that 3a either requires a double morror or
> leaving the f/s un mirrored, and 3b can take a very long time for a big
> f/s.

3b should be fairly quick since you only need to do an in-memory
copy of some LVM metadata.

Rik
-- 
Bravely reimplemented by the knights who say "NIH".

http://www.surriel.com/		http://distro.conectiva.com/

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