From: hpa@zytor.com (H. Peter Anvin)
To: linux-kernel@vger.kernel.org
Subject: Re: The missing RAID level
Date: Thu, 22 Apr 2004 02:54:51 +0000 (UTC) [thread overview]
Message-ID: <c67c5r$c0u$1@terminus.zytor.com> (raw)
In-Reply-To: 045P8FJ12@server5.heliogroup.fr
Followup to: <045P8FJ12@server5.heliogroup.fr>
By author: Hubert Tonneau <hubert.tonneau@fullpliant.org>
In newsgroup: linux.dev.kernel
>
> So, one very interesting possibility would be to have an extra RAID level that
> would do the following:
> assuming that you connect 5+1 partitions, then you get 5 md partitions, not a
> single one, with the following properties:
> . any read to mdX goes straight forward to reading the underlying partition.
> . any write goes staight forward to writting the underlying partition, but also
> updates the parity on the extra partition.
>
You have just described RAID 4.
-hpa
prev parent reply other threads:[~2004-04-22 2:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-20 19:50 The missing RAID level Hubert Tonneau
2004-04-21 21:04 ` Eric D. Mudama
[not found] ` <fa.eu3v38b.10meq3@ifi.uio.no>
2004-04-21 21:52 ` Junio C Hamano
2004-04-22 2:54 ` H. Peter Anvin [this message]
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