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Date: Sun, 13 Oct 2002 17:57:06 -0200 (BRST)
From: Rik van Riel <riel@conectiva.com.br>
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To: Mark Hahn <hahn@physics.mcmaster.ca>
cc: Brian Jackson <brian-kernel-list@mdrx.com>, <linux-kernel@vger.kernel.org>,
       <evms-devel@lists.sourceforge.net>
Subject: Re: Linux v2.5.42
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On Sun, 13 Oct 2002, Mark Hahn wrote:

> > Yes I do realize that, but I think EVMS offers more in the long run than any
> > of the others.
>
> not to put too find a point on it, but IBM has their own goals. for
> instance, some part of EVMS design is motivated by IBM's political
> desire to permit its bank customers, who have horrible old OS/2 systems,
> to transparently use OS/2 volumes.  it's not as if IBM couldn't provide
> a simple, user-level migration tool.

You don't need a migration tool.

All you need is:

1) a kernel level driver that can map devices, ie. a device mapper

2) user space tools that can parse the volume metadata and tell the
   kernel how to map each chunk at initialisation or mount time

You don't need a flying circus in kernel space.

regards,

Rik
-- 
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