From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@quanstro.net>
Date: Tue, 26 Mar 2013 08:52:24 -0400
To: 9fans@9fans.net
Message-ID: <931c24b31306b375414ac7852b981baa@brasstown.quanstro.net>
In-Reply-To: <083A7E1D-51E0-4BA2-AA2E-5D4169042D94@ar.aichi-u.ac.jp>
References: <20130324221029.GA23536@one.invalid.invalid>
	<5f805f457dd047c8e3d07b9da6038843@brasstown.quanstro.net>
	<20130325020454.GA30785@one.invalid.invalid>
	<083A7E1D-51E0-4BA2-AA2E-5D4169042D94@ar.aichi-u.ac.jp>
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Subject: Re: [9fans] Disk backup?
Topicbox-Message-UUID: 363f1b02-ead8-11e9-9d60-3106f5b1d025

> Hello,
>
> Now I think,
> pseudo-RAID1 configuration
> c(/dev/sdC0/fscache){(/dev/sdC0/fsworm)(/dev/sdD0/fsworm)}
> might be a best solution.
> I have no experience this configuration.
> anyone tried it?

from iwp9 2e, http://www.quanstro.net/plan9/disklessfs.pdf
we take advantage of the mirror (don't confuse it with raid1)
by putting the second copy in another building.  there is
never a performance impact to doing this.

- erik