[CentOS] Possible to use multiple disk to bypass I/O wait?

Markus Falb markus.falb at fasel.at
Thu Jun 9 16:59:46 UTC 2011


On 9.6.2011 12:38, Benjamin Franz wrote:
> On 06/09/2011 02:24 AM, Emmanuel Noobadmin wrote:
>> I'm trying to resolve an I/O problem on a CentOS 5.6 server. The
>> process basically scans through Maildirs, checking for space usage and
>> quota. Because there are hundred odd user folders and several 10s of
>> thousands of small files, this sends the I/O wait % way high. The
>> server hits a very high load level and stops responding to other
>> requests until the crawl is done.

> setting 'noatime' for the 
> mount options for partition holding the files will reduce the number of 
> required I/Os quite a lot.

Yes, but before doing this be sure that your Software does not need atime.

-- 
Kind Regards, Markus Falb

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