From: Peter Rabbitson <rabbit@rabbit.us>
To: linux-raid@vger.kernel.org
Subject: Re: Help with chunksize on raid10 -p o3 array
Date: Mon, 12 Mar 2007 22:16:01 +0100 [thread overview]
Message-ID: <45F5C311.7030302@rabbit.us> (raw)
In-Reply-To: <45F59FE0.2000307@sauce.co.nz>
Richard Scobie wrote:
> Peter Rabbitson wrote:
>
>> Is this anywhere near the top of the todo list, or for now raid10
>> users are bound to a maximum read speed of a two drive combination?
>
> I have not done any testing with the md native RAID10 implementations,
> so perhaps there are some other advantages, but have you tried setting
> up your 4 drives as a RAID 0 made up of a pair of RAID1s?
The advantage is higher redundancy when I can have any two drives fail
in a x3 layout unlike the raid1/0 setup, although I sacrifice available
disk space. But yes, I agree that if I was after pure throughput raid1/0
would be more beneficial, with the downside of 1.5 disk failure redundancy.
next prev parent reply other threads:[~2007-03-12 21:16 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-06 11:26 Help with chunksize on raid10 -p o3 array Peter Rabbitson
2007-03-07 0:31 ` Bill Davidsen
2007-03-07 9:28 ` Peter Rabbitson
2007-03-12 4:28 ` Neil Brown
2007-03-12 14:46 ` Peter Rabbitson
2007-03-12 18:45 ` Richard Scobie
2007-03-12 21:16 ` Peter Rabbitson [this message]
2007-03-19 14:14 ` raid10 far layout outperforms offset at writing? (was: Help with chunksize on raid10 -p o3 array) Peter Rabbitson
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