From: Stan Hoeppner <stan@hardwarefreak.com>
To: "Keld Jørn Simonsen" <keld@keldix.com>
Cc: Linux RAID <linux-raid@vger.kernel.org>
Subject: Re: high throughput storage server?
Date: Wed, 16 Feb 2011 18:19:41 -0600 [thread overview]
Message-ID: <4D5C699D.5010509@hardwarefreak.com> (raw)
In-Reply-To: <20110217000058.GA16130@www2.open-std.org>
Keld Jørn Simonsen put forth on 2/16/2011 6:00 PM:
> On Wed, Feb 16, 2011 at 05:32:58PM -0600, Stan Hoeppner wrote:
>> David Brown put forth on 2/15/2011 7:39 AM:
>>
>> RAID level space/cost efficiency from a TCO standpoint is largely irrelevant
>> today due to the low price of mech drives. Using the SATABeast as an example,
>> the cost per TB of a 20TB RAID 10 is roughly $1600/TB and a 20TB RAID 6 is about
>> $1200/TB. Given all the advantages of RAID 10 over RAID 6 the 33% premium is
>> more than worth it.
>
> I assume that you with 20 TB mean the payload space in both places, that
> is for the Linux MD RAID10 you actually have 40 TB of raw disk space.
> With the Linux MD raid10 solution you furthermore can enjoy an almost
> double up of the IO reading speed, involving 20 * 2 TB spindles compared
> to 12 * 2 TB spindles.
Enterprise solutions don't use Linux mdraid. The RAID function is built into
the SAN controller. My TCO figures were based on a single controller SATABeast,
42x1TB drives in the RAID 10, and 24x1TB drives in the RAID 6, each
configuration including two spares.
--
Stan
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next prev parent reply other threads:[~2011-02-17 0:19 UTC|newest]
Thread overview: 116+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-14 23:59 high throughput storage server? Matt Garman
2011-02-15 2:06 ` Doug Dumitru
2011-02-15 4:44 ` Matt Garman
2011-02-15 5:49 ` hansbkk
2011-02-15 9:43 ` David Brown
2011-02-24 20:28 ` Matt Garman
2011-02-24 20:43 ` David Brown
2011-02-15 15:16 ` Joe Landman
2011-02-15 20:37 ` NeilBrown
2011-02-15 20:47 ` Joe Landman
2011-02-15 21:41 ` NeilBrown
2011-02-24 20:58 ` Matt Garman
2011-02-24 21:20 ` Joe Landman
2011-02-26 23:54 ` high throughput storage server? GPFS w/ 10GB/s throughput to the rescue Stan Hoeppner
2011-02-27 0:56 ` Joe Landman
2011-02-27 14:55 ` Stan Hoeppner
2011-03-12 22:49 ` Matt Garman
2011-02-27 21:30 ` high throughput storage server? Ed W
2011-02-28 15:46 ` Joe Landman
2011-02-28 23:14 ` Stan Hoeppner
2011-02-28 22:22 ` Stan Hoeppner
2011-03-02 3:44 ` Matt Garman
2011-03-02 4:20 ` Joe Landman
2011-03-02 7:10 ` Roberto Spadim
2011-03-02 19:03 ` Drew
2011-03-02 19:20 ` Roberto Spadim
2011-03-13 20:10 ` Christoph Hellwig
2011-03-14 12:27 ` Stan Hoeppner
2011-03-14 12:47 ` Christoph Hellwig
2011-03-18 13:16 ` Stan Hoeppner
2011-03-18 14:05 ` Christoph Hellwig
2011-03-18 15:43 ` Stan Hoeppner
2011-03-18 16:21 ` Roberto Spadim
2011-03-18 22:01 ` NeilBrown
2011-03-18 22:23 ` Roberto Spadim
2011-03-20 1:34 ` Stan Hoeppner
2011-03-20 3:41 ` NeilBrown
2011-03-20 5:32 ` Roberto Spadim
2011-03-20 23:22 ` Stan Hoeppner
2011-03-21 0:52 ` Roberto Spadim
2011-03-21 2:44 ` Keld Jørn Simonsen
2011-03-21 3:13 ` Roberto Spadim
2011-03-21 3:14 ` Roberto Spadim
2011-03-21 17:07 ` Stan Hoeppner
2011-03-21 14:18 ` Stan Hoeppner
2011-03-21 17:08 ` Roberto Spadim
2011-03-21 22:13 ` Keld Jørn Simonsen
2011-03-22 9:46 ` Robin Hill
2011-03-22 10:14 ` Keld Jørn Simonsen
2011-03-23 8:53 ` Stan Hoeppner
2011-03-23 15:57 ` Roberto Spadim
2011-03-23 16:19 ` Joe Landman
2011-03-24 8:05 ` Stan Hoeppner
2011-03-24 13:12 ` Joe Landman
2011-03-25 7:06 ` Stan Hoeppner
2011-03-24 17:07 ` Christoph Hellwig
2011-03-24 5:52 ` Stan Hoeppner
2011-03-24 6:33 ` NeilBrown
2011-03-24 8:07 ` Roberto Spadim
2011-03-24 8:31 ` Stan Hoeppner
2011-03-22 10:00 ` Stan Hoeppner
2011-03-22 11:01 ` Keld Jørn Simonsen
2011-02-15 12:29 ` Stan Hoeppner
2011-02-15 12:45 ` Roberto Spadim
2011-02-15 13:03 ` Roberto Spadim
2011-02-24 20:43 ` Matt Garman
2011-02-24 20:53 ` Zdenek Kaspar
2011-02-24 21:07 ` Joe Landman
2011-02-15 13:39 ` David Brown
2011-02-16 23:32 ` Stan Hoeppner
2011-02-17 0:00 ` Keld Jørn Simonsen
2011-02-17 0:19 ` Stan Hoeppner [this message]
2011-02-17 2:23 ` Roberto Spadim
2011-02-17 3:05 ` Stan Hoeppner
2011-02-17 0:26 ` David Brown
2011-02-17 0:45 ` Stan Hoeppner
2011-02-17 10:39 ` David Brown
2011-02-24 20:49 ` Matt Garman
2011-02-15 13:48 ` Zdenek Kaspar
2011-02-15 14:29 ` Roberto Spadim
2011-02-15 14:51 ` A. Krijgsman
2011-02-15 16:44 ` Roberto Spadim
2011-02-15 14:56 ` Zdenek Kaspar
2011-02-24 20:36 ` Matt Garman
2011-02-17 11:07 ` John Robinson
2011-02-17 13:36 ` Roberto Spadim
2011-02-17 13:54 ` Roberto Spadim
2011-02-17 21:47 ` Stan Hoeppner
2011-02-17 22:13 ` Joe Landman
2011-02-17 23:49 ` Stan Hoeppner
2011-02-18 0:06 ` Joe Landman
2011-02-18 3:48 ` Stan Hoeppner
2011-02-18 13:49 ` Mattias Wadenstein
2011-02-18 23:16 ` Stan Hoeppner
2011-02-21 10:25 ` Mattias Wadenstein
2011-02-21 21:51 ` Stan Hoeppner
2011-02-22 8:57 ` David Brown
2011-02-22 9:30 ` Mattias Wadenstein
2011-02-22 9:49 ` David Brown
2011-02-22 13:38 ` Stan Hoeppner
2011-02-22 14:18 ` David Brown
2011-02-23 5:52 ` Stan Hoeppner
2011-02-23 13:56 ` David Brown
2011-02-23 14:25 ` John Robinson
2011-02-23 15:15 ` David Brown
2011-02-23 23:14 ` Stan Hoeppner
2011-02-24 10:19 ` David Brown
2011-02-23 21:59 ` Stan Hoeppner
2011-02-23 23:43 ` John Robinson
2011-02-24 15:53 ` Stan Hoeppner
2011-02-23 21:11 ` Stan Hoeppner
2011-02-24 11:24 ` David Brown
2011-02-24 23:30 ` Stan Hoeppner
2011-02-25 8:20 ` David Brown
2011-02-19 0:24 ` Joe Landman
2011-02-21 10:04 ` Mattias Wadenstein
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