From: Stan Hoeppner <stan@hardwarefreak.com>
To: Jon Nelson <jnelson-linux-raid@jamponi.net>
Cc: David Brown <david@westcontrol.com>, linux-raid@vger.kernel.org
Subject: Re: What's the typical RAID10 setup?
Date: Tue, 01 Feb 2011 16:05:23 -0600 [thread overview]
Message-ID: <4D4883A3.6030605@hardwarefreak.com> (raw)
In-Reply-To: <AANLkTin1MPYZGMuL75c=_q+ndeiz0F5+eCRudpDdTwu9@mail.gmail.com>
Jon Nelson put forth on 2/1/2011 7:50 AM:
> The performance will not be the same because. Whenever possible, md
> reads from the outermost portion of the disk -- theoretically the
> fastest portion of the disk (by 2 or 3 times as much as the inner
> tracks) -- and in this way raid10,f2 can actually be faster than
> raid0.
Faster in what regard? I assume you mean purely sequential read, and not random
IOPS. The access patterns of the vast majority of workloads are random, so I
don't see much real world benefit, if what you say is correct. This might
benefit MythTV or similar niche streaming apps.
--
Stan
next prev parent reply other threads:[~2011-02-01 22:05 UTC|newest]
Thread overview: 127+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-31 9:41 What's the typical RAID10 setup? Mathias Burén
2011-01-31 10:14 ` Robin Hill
2011-01-31 10:22 ` Mathias Burén
2011-01-31 10:36 ` CoolCold
2011-01-31 15:00 ` Roberto Spadim
2011-01-31 15:21 ` Robin Hill
2011-01-31 15:27 ` Roberto Spadim
2011-01-31 15:28 ` Roberto Spadim
2011-01-31 15:32 ` Roberto Spadim
2011-01-31 15:34 ` Roberto Spadim
2011-01-31 15:37 ` Roberto Spadim
2011-01-31 15:45 ` Robin Hill
2011-01-31 16:55 ` Denis
2011-01-31 17:31 ` Roberto Spadim
2011-01-31 18:35 ` Denis
2011-01-31 19:15 ` Roberto Spadim
2011-01-31 19:28 ` Keld Jørn Simonsen
2011-01-31 19:35 ` Roberto Spadim
2011-01-31 19:37 ` Roberto Spadim
2011-01-31 20:22 ` Keld Jørn Simonsen
2011-01-31 20:17 ` Stan Hoeppner
2011-01-31 20:37 ` Keld Jørn Simonsen
2011-01-31 21:20 ` Roberto Spadim
2011-01-31 21:24 ` Mathias Burén
2011-01-31 21:27 ` Jon Nelson
2011-01-31 21:47 ` Roberto Spadim
2011-01-31 21:51 ` Roberto Spadim
2011-01-31 22:50 ` NeilBrown
2011-01-31 22:53 ` Roberto Spadim
2011-01-31 23:10 ` NeilBrown
2011-01-31 23:14 ` Roberto Spadim
2011-01-31 22:52 ` Keld Jørn Simonsen
2011-01-31 23:00 ` Roberto Spadim
2011-02-01 10:01 ` David Brown
2011-02-01 13:50 ` Jon Nelson
2011-02-01 14:25 ` Roberto Spadim
2011-02-01 14:48 ` David Brown
2011-02-01 15:41 ` Roberto Spadim
2011-02-03 3:36 ` Drew
2011-02-03 8:18 ` Stan Hoeppner
[not found] ` <AANLkTikerSZfhMbkEvGBVyLB=wHDSHLWszoEz5As5Hi4@mail.gmail.com>
[not found] ` <AANLkTikLyR206x4aMy+veNkWPV67uF9r5dZKGqXJUEqN@mail.gmail.com>
2011-02-03 14:35 ` Roberto Spadim
2011-02-03 15:43 ` Keld Jørn Simonsen
2011-02-03 15:50 ` Roberto Spadim
2011-02-03 15:54 ` Roberto Spadim
2011-02-03 16:02 ` Keld Jørn Simonsen
2011-02-03 16:07 ` Roberto Spadim
2011-02-03 16:16 ` Roberto Spadim
2011-02-01 22:05 ` Stan Hoeppner [this message]
2011-02-01 23:12 ` Roberto Spadim
2011-02-02 9:25 ` Robin Hill
2011-02-02 16:00 ` Roberto Spadim
2011-02-02 16:06 ` Roberto Spadim
2011-02-02 16:07 ` Roberto Spadim
2011-02-02 16:10 ` Roberto Spadim
2011-02-02 16:13 ` Roberto Spadim
2011-02-02 19:44 ` Keld Jørn Simonsen
2011-02-02 20:28 ` Roberto Spadim
2011-02-02 21:31 ` Roberto Spadim
2011-02-02 22:13 ` Keld Jørn Simonsen
2011-02-02 22:26 ` Roberto Spadim
2011-02-03 1:57 ` Roberto Spadim
2011-02-03 3:05 ` Stan Hoeppner
2011-02-03 3:13 ` Roberto Spadim
2011-02-03 3:17 ` Roberto Spadim
2011-02-01 23:35 ` Keld Jørn Simonsen
2011-02-01 16:02 ` Keld Jørn Simonsen
2011-02-01 16:24 ` Roberto Spadim
2011-02-01 17:56 ` Keld Jørn Simonsen
2011-02-01 18:09 ` Roberto Spadim
2011-02-01 20:16 ` Keld Jørn Simonsen
2011-02-01 20:32 ` Keld Jørn Simonsen
2011-02-01 20:58 ` Roberto Spadim
2011-02-01 21:04 ` Roberto Spadim
2011-02-01 21:18 ` David Brown
2011-02-01 0:58 ` Stan Hoeppner
2011-02-01 12:50 ` Roman Mamedov
2011-02-03 11:04 ` Keld Jørn Simonsen
2011-02-03 14:17 ` Roberto Spadim
2011-02-03 15:54 ` Keld Jørn Simonsen
2011-02-03 18:39 ` Keld Jørn Simonsen
2011-02-03 18:41 ` Roberto Spadim
2011-02-03 23:43 ` Stan Hoeppner
2011-02-04 3:49 ` hansbkk
2011-02-04 7:06 ` Keld Jørn Simonsen
2011-02-04 8:27 ` Stan Hoeppner
2011-02-04 9:06 ` Keld Jørn Simonsen
2011-02-04 10:04 ` Stan Hoeppner
2011-02-04 11:15 ` hansbkk
2011-02-04 13:33 ` Keld Jørn Simonsen
2011-02-04 20:35 ` Keld Jørn Simonsen
2011-02-04 20:42 ` Keld Jørn Simonsen
2011-02-04 21:15 ` Stan Hoeppner
2011-02-04 22:05 ` Keld Jørn Simonsen
2011-02-04 23:03 ` Stan Hoeppner
2011-02-06 3:59 ` Drew
2011-02-06 4:27 ` Stan Hoeppner
2011-02-04 11:34 ` David Brown
2011-02-04 13:53 ` Keld Jørn Simonsen
2011-02-04 14:17 ` David Brown
2011-02-04 14:21 ` hansbkk
2011-02-06 4:02 ` Drew
2011-02-06 7:58 ` Keld Jørn Simonsen
2011-02-06 12:03 ` Roman Mamedov
2011-02-06 14:30 ` Roberto Spadim
2011-02-01 8:46 ` hansbkk
2011-01-31 19:37 ` Phillip Susi
2011-01-31 19:41 ` Roberto Spadim
2011-01-31 19:46 ` Phillip Susi
2011-01-31 19:53 ` Roberto Spadim
2011-01-31 22:10 ` Phillip Susi
2011-01-31 22:14 ` Denis
2011-01-31 22:33 ` Roberto Spadim
2011-01-31 22:36 ` Roberto Spadim
2011-01-31 20:23 ` Stan Hoeppner
2011-01-31 21:59 ` Phillip Susi
2011-01-31 22:08 ` Jon Nelson
2011-01-31 22:38 ` Phillip Susi
2011-02-01 10:05 ` David Brown
2011-02-01 9:20 ` Robin Hill
2011-02-04 16:03 ` Phillip Susi
2011-02-04 16:22 ` Robin Hill
2011-02-04 20:35 ` [OT] " Phil Turmel
2011-02-04 20:35 ` Phillip Susi
2011-02-04 21:05 ` Stan Hoeppner
2011-02-04 21:13 ` Roberto Spadim
2011-01-31 15:30 ` Robin Hill
2011-01-31 20:07 ` Stan Hoeppner
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