From: Bill Davidsen <davidsen@tmr.com>
To: Gilad Arnold <arnold@cs.berkeley.edu>
Cc: Roman Mamedov <roman@rm.pp.ru>, linux-raid@vger.kernel.org
Subject: Re: migrating from RAID5 to RAID10
Date: Wed, 16 Jun 2010 21:59:15 -0400 [thread overview]
Message-ID: <4C198173.6050305@tmr.com> (raw)
In-Reply-To: <20100616201523.GA24349@libra.CS.Berkeley.EDU>
Gilad Arnold wrote:
> On Wed, Jun 16, 2010 at 11:30:31AM -0700, Gilad Arnold wrote:
>
>> Thanks for the thorough evaluation and thoughtful advice! Much
>> appreciated. I agree it makes a lot more sense and I will follow your
>> suggested procedure (when I get to purchase the extra drive ;-) )
>>
>
> PS, a related question: some measurements posted on the web suggest that
> RAID10 in f2 mode is far superior to n2 (the default?) when it comes to
> reading performance, and only mildly inferior when writing. I tend to
> go with f2, unless someone tells me it's a bad idea.
>
>
It is a GREAT idea, and will produce much better sustained read performance.
--
Bill Davidsen <davidsen@tmr.com>
"We can't solve today's problems by using the same thinking we
used in creating them." - Einstein
next prev parent reply other threads:[~2010-06-17 1:59 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-09 15:11 migrating from RAID5 to RAID10 Gilad Arnold
2010-06-10 18:52 ` Roman Mamedov
2010-06-10 19:58 ` Gilad Arnold
2010-06-10 22:11 ` Drew
2010-06-10 22:21 ` Drew
2010-06-10 22:30 ` Gilad Arnold
2010-06-10 22:26 ` Gilad Arnold
2010-06-16 15:54 ` Bill Davidsen
2010-06-16 18:30 ` Gilad Arnold
2010-06-16 20:15 ` Gilad Arnold
2010-06-17 1:59 ` Bill Davidsen [this message]
2010-06-16 21:26 ` Neil Brown
2010-06-17 17:44 ` Gilad Arnold
2010-06-17 22:30 ` Neil Brown
2010-06-18 8:40 ` Keld Simonsen
2010-06-21 22:09 ` Neil Brown
2010-06-17 22:46 ` Gilad Arnold
2010-06-18 2:39 ` Neil Brown
2010-06-18 4:01 ` Gilad Arnold
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