Date: Tue, 13 Jan 2004 17:44:22 -0500
From: Wakko Warner <wakko@animx.eu.org>
To: Arjan van de Ven <arjanv@redhat.com>
Cc: Scott Long <scott_long@adaptec.com>, linux-kernel@vger.kernel.org
Subject: Re: Proposed enhancements to MD
Message-ID: <20040113174422.B16728@animx.eu.org>
References: <40033D02.8000207@adaptec.com> <1074031592.4981.1.camel@laptop.fenrus.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
In-Reply-To: <1074031592.4981.1.camel@laptop.fenrus.com>; from Arjan van de Ven on Tue, Jan 13, 2004 at 11:06:32PM +0100
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1111
Lines: 24

> > Adaptec has been looking at the MD driver for a foundation for their
> > Open-Source software RAID stack.
> 
> Hi,
> 
> Is there a (good) reason you didn't use Device Mapper for this? It
> really sounds like Device Mapper is the way to go to parse and use
> raid-like formats to the kernel, since it's designed to be independent
> of on disk formats, unlike MD.

As I've understood it, the configuration for DM is userspace and the kernel
can't do any auto detection.  This would be a "put off" for me to use as a
root filesystem.  Configurations like this (and lvm too last I looked at it)
require an initrd or some other way of setting up the device.  Unfortunately
this means that there's configs in 2 locations (one not easily available,  if
using initrd.  easily != mounting via loop!)

-- 
 Lab tests show that use of micro$oft causes cancer in lab animals
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/