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List:       lustre-discuss
Subject:    [Lustre-discuss] I/O error on clients
From:       pkitchener () cmcrc ! com (Peter Kitchener)
Date:       2010-07-21 0:05:04
Message-ID: E891525A-7AEB-423A-B677-F9F9B57BACCF () cmcrc ! com
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Hi All,

So I've applied the patch for the bug 22897 to the 1.8.2 source etc and rebuilt the \
lustre rpms. So far our development team has reported an improvement in the frequency \
of the I/O Errors but still not enough for them to be 100% happy. 

In the mean time i've been double checking all the settings and understanding the \
timeouts etc. As we use software RAID on the OSTs I've made sure that the setup of \
these are as the operations manual states. 

My next port of call is going to be to update the bnx2x driver that our BCM57711 \
10Gig Ethernet cards use on all the clients and MDT/OSTs. I doubt that its going to \
make a difference but the version of the driver is the CentOS 5.4 driver.

I have also had a snoop round the switch to make sure there isn't any funny setting \
floating round that could also be the cause of the problem.

Any thoughts?

Regards, 

Peter Kitchener
Systems Administrator
Capital Markets CRC Limited (CMCRC)
Telephone: +61 2 8088 4223
Fax: +61 2 8088 4201
www.cmcrc.com 

 




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