From mboxrd@z Thu Jan  1 00:00:00 1970
From: Al Boldi <a1426z@gawab.com>
Subject: Re: [PATCH 009 of 11] md: Support stripe/offset mode in raid10
Date: Tue, 2 May 2006 19:38:45 +0300
Message-ID: <200605021938.45254.a1426z@gawab.com>
References: <20060501152229.18367.patches@notabene> <1060501053054.23009@suse.de>
Mime-Version: 1.0
Content-Type: text/plain;
  charset="windows-1256"
Content-Transfer-Encoding: 7bit
Return-path: <linux-raid-owner@vger.kernel.org>
In-Reply-To: <1060501053054.23009@suse.de>
Content-Disposition: inline
Sender: linux-raid-owner@vger.kernel.org
To: NeilBrown <neilb@suse.de>
Cc: linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org, Andrew Morton <akpm@osdl.org>
List-Id: linux-raid.ids

NeilBrown wrote:
> The "industry standard" DDF format allows for a stripe/offset layout
> where data is duplicated on different stripes. e.g.
>
>   A  B  C  D	
>   D  A  B  C	
>   E  F  G  H	
>   H  E  F  G	
>
> (columns are drives, rows are stripes, LETTERS are chunks of data).

Presumably, this is the case for --layout=f2 ?
If so, would --layout=f4 result in a 4-mirror/striped array?

Also, would it be possible to have a staged write-back mechanism across 
multiple stripes?

Thanks!

--
Al