From: John Robinson <john.robinson@anonymous.org.uk>
To: Dylan Distasio <interzone@gmail.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: Question on RAID 10 setup
Date: Tue, 24 Mar 2009 23:48:49 +0000 [thread overview]
Message-ID: <49C97161.5020207@anonymous.org.uk> (raw)
In-Reply-To: <3513de790903241515m2eeff929x855322a51117c45b@mail.gmail.com>
On 24/03/2009 22:15, Dylan Distasio wrote:
> Hi all-
>
> I would like to put together a RAID10 array utilizing 2x1TB drives and
> 2x500 gig drives I have in my home Linux server. Is the best way to do
> this to create 2 separate RAID1 arrays, one for each set of drives, and
> then a RAID0 array made up of the RAID1 ones? I just wanted to verify
> that I am going about this correctly, and also get input on whether
> there are any disadvantages to this setup. I would prefer not to split
> these up into two separate RAID10 arrays because I want the combined
> space available under one. Thanks for any comments.
I think you can mix drive sizes under md RAID-10 - much as you're
proposing to above with your RAID-0 of different-sized RAID-1s - and md
will just do the Right Thing. I'd go for testing that and play with
layouts (near, far, offset) to suit your requirements before worrying
about setting up RAID 1+0.
Actually with your hardware I'd probably set up a 1TB RAID-0 with the
500G drives then make a RAID-5 from the 3 1TB devices (2 raw drives plus
one md RAID-0). If you can be bothered try benchmarking that too; as
well as giving you more storage I think it'll probably match the RAID-10
or RAID 1+0 for performance.
Cheers,
John.
next prev parent reply other threads:[~2009-03-24 23:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1183FAF84E86E244938C2174EE436BAC030FBE29@NYKPCMEU306VEUA.INTRANET.BARCAPINT.COM>
2009-03-24 22:15 ` Question on RAID 10 setup Dylan Distasio
2009-03-24 23:48 ` John Robinson [this message]
2009-03-25 0:52 ` Keld Jørn Simonsen
2009-03-25 2:23 ` Neil Brown
2009-03-25 12:26 ` Bill Davidsen
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