Performance Best Practice for Linux / Oracle

[chuckk281]

Glyn had a customer that was having performance problems with Oracle RAC on Linux:

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I have a customer who says they are having some performance issues with Linux I/O rates. They have BL490 with 4 flex 10 ports and 4 modules. The specific question is around drivers and kernel configuration for a linux host running Oracle RAC.

Can anyone point me at any information.

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Brendan had some info:

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Not much info on performance issues experienced, version of Linux or RAC .... have a look at the following links, They may provide some insight to Oracle RAC & Linux kernel tuning parameters.

http://www.pythian.com/news/1326/performance-tuning-hugepages-in-linux/     .... currently a discussion on linux PDL about this.
http://www.oracle.com/technology/pub/articles/hunter-rac11gr2-iscsi-2.html#15
http://www.puschitz.com/TuningLinuxForOracle.shtml ... bit old but still useful

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Simo also had some advice:

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Check the HP-Oracle Cooperative Technology Center pages. At least, there has been lot’s of info for RAC/Linux installation.

http://www.hporacle.com/CTC/[UI]/lib/registration.asp

Many other possibilities for IO performance issues. Have they checked Linux IO configuration/parameters, SAN and Storage configuration and performance capacity.

Also Linux driver versions etc… Do they have long IO wait/service times and/or long queues?

Check also this.

http://h20338.www2.hp.com/enterprise/w1/en/solutions/storage-customer-focused-testing-oracle.html

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Any other help for Glyn and customer? Are you using this combination? Any issues? Let us know.