From: Keld Simonsen <keld@keldix.com>
To: John Hendrikx <hjohn@xs4all.nl>
Cc: linux-raid <linux-raid@vger.kernel.org>
Subject: Re: Reed Solomon coding based Raid?
Date: Sat, 28 Nov 2009 19:57:32 +0100 [thread overview]
Message-ID: <20091128185732.GA15674@light.rap.dk> (raw)
In-Reply-To: <4B113E90.50904@xs4all.nl>
On Sat, Nov 28, 2009 at 04:15:28PM +0100, John Hendrikx wrote:
> I was wondering if there is support for a raid level where one can
> choose the redundancy level. Raid 5 allows for one redundant drive,
> Raid 6 for two, but there's no raid level that would support arbitrary
> redundancy (even to the point of allowing one to add extra redundancy
> later on, by simply putting spare drives to immediate use).
>
> I'm just a casual Software Raid user, and have been using Raid 6 for a
> small 8 TB array for a few years now and I realize that there's quite
> some CPU overhead involved for such redundancy, but for my purposes
> speed is not a relevant concern (10 MB/sec is enough).
Actually you can choose the number of copies in raid10, via the -n
option.
Best regards
keld
prev parent reply other threads:[~2009-11-28 18:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-28 15:15 Reed Solomon coding based Raid? John Hendrikx
2009-11-28 15:48 ` Kasper Sandberg
2009-11-28 17:43 ` Peter Chacko
2009-11-29 15:50 ` Andrew Dunn
2009-11-30 12:36 ` Goswin von Brederlow
2009-11-28 18:57 ` Keld Simonsen [this message]
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