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From: Phil Turmel <philip@turmel.org>
To: Adam Goryachev <mailinglists@websitemanagers.com.au>
Cc: linux-raid <linux-raid@vger.kernel.org>
Subject: Re: RAID10 Performance
Date: Fri, 27 Jul 2012 08:05:22 -0400	[thread overview]
Message-ID: <50128402.5040004@turmel.org> (raw)
In-Reply-To: <50115123.1020900@websitemanagers.com.au>

Hi Adam,

On 07/26/2012 10:16 AM, Adam Goryachev wrote:
> Hi all,
> 
> I've got a system with the following config that I am trying to improve
> performance on. Hopefully you can help guide me in the best direction
> please.
> 
> 1 x SSD (OS drive only)
> 3 x 2TB WDC WD2003FYYS-02W0B1
> 
> The three HDD's are configured in a single RAID10 (I configured as
> RAID10 to easily support adding additional drives later, I realise/hope
> it is currently equivalent to RAID1)
> md0 : active raid10 sdb1[0] sdd1[2](S) sdc1[1]
>       1953511936 blocks super 1.2 2 near-copies [2/2] [UU]

In addition to Stan's comments, you should know that MD raid10 is not
reshapeable yet.  You cannot use --grow to increase that array's
capacity.

That feature is in the roadmap, so you can expect it eventually.

HTH,

Phil


  parent reply	other threads:[~2012-07-27 12:05 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-26 14:16 RAID10 Performance Adam Goryachev
2012-07-27  7:07 ` Stan Hoeppner
2012-07-27 13:02   ` Adam Goryachev
2012-07-27 18:29     ` Stan Hoeppner
2012-07-28  6:36       ` Adam Goryachev
2012-07-28 15:33         ` Stan Hoeppner
2012-08-08  3:49           ` Adam Goryachev
2012-08-08 16:59             ` Stan Hoeppner
2012-08-08 17:14               ` Roberto Spadim
2012-08-09  1:00               ` Adam Goryachev
2012-08-09 22:37                 ` Stan Hoeppner
2012-07-27 12:05 ` Phil Turmel [this message]
  -- strict thread matches above, loose matches on Subject: below --
2011-03-02  9:04 Aaron Sowry
2011-03-02  9:24 ` Robin Hill
2011-03-02 10:14   ` Keld Jørn Simonsen
2011-03-02 14:42 ` Mark Knecht
2011-03-02 14:47   ` Mathias Burén
2011-03-02 15:02 ` Mario 'BitKoenig' Holbe
2011-03-02  8:50 Aaron Sowry
2011-03-02 11:16 ` NeilBrown

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