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Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++ - Mailing list pgsql-performance

From Greg Smith
Subject Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++
Date
Msg-id 4E4C65F8.2000907@2ndQuadrant.com
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In response to Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++  ("mark" <dvlhntr@gmail.com>)
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On 08/17/2011 08:35 PM, mark wrote:
> With XFS the mount option is nobarrier. With ext4 I think it is barrier=0

http://www.mjmwired.net/kernel/Documentation/filesystems/ext4.txt

ext4 supports both; "nobarrier" and "barrier=0" mean the same thing.  I
tend to use "nobarrier" just because I'm used to that name on XFS systems.

--
Greg Smith   2ndQuadrant US    greg@2ndQuadrant.com   Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support  www.2ndQuadrant.us

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