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тАО03-05-2009 09:16 AM
тАО03-05-2009 09:16 AM
I can't seem to find a good resource for memory management on hp-ux v11.31.
Could someone point me in the right direction.
Also, we are installing oracle 9.2.0 for hp-ux 11.31 and the people at oracle could not give a good set of directions for what kernel parameters to modify.
thanks,
lrf
Solved! Go to Solution.
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тАО03-05-2009 09:19 AM
тАО03-05-2009 09:19 AM
Re: memory management
To know what is using what, try this tool. I wrote it:
http://www.hpux.ws/?p=8
For actual management and optimization, HP has a pay for add in program called WLM
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО03-05-2009 09:37 AM
тАО03-05-2009 09:37 AM
Re: memory management
You might find this white-paper useful:
http://docs.hp.com/en/5992-4222ENW/5992-4222ENW.pdf
Appendix-A speaks specifically about Oracle.
Regards!
...JRF...
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тАО03-05-2009 07:38 PM
тАО03-05-2009 07:38 PM
Re: memory management
Note that for the more recent HP-UX 11.31 Base/Foundation OEs, the PRM is included in the license.
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тАО03-05-2009 11:44 PM
тАО03-05-2009 11:44 PM
Re: memory management
First of all, they can limit private memory for oracle, but shared memory (like the SGA) is taken from the PRM_SYS (root) resource group, not from the one you would define for Oracle.
Further : You can specify perfectly what amount of memory Oracle is allowed to use : SGA, PGA, ...
So, what eactly is it that you want to do ?
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тАО03-06-2009 04:29 AM
тАО03-06-2009 04:29 AM
Re: memory management
One more thing, is there a better quick way of seeing memory usage other than swapinf -tm?
thanks again for all the info.
lrf
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тАО03-06-2009 12:11 PM
тАО03-06-2009 12:11 PM
Re: memory management
What would you like in "better", more details like the file cache?
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тАО03-06-2009 12:31 PM
тАО03-06-2009 12:31 PM
Re: memory management
thanks,
lrf
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тАО03-06-2009 12:35 PM
тАО03-06-2009 12:35 PM
Re: memory management
http://download.oracle.com/docs/cd/E11062_01/install.1023/e11057/avgnt_preinstall.htm#CBHEFJIG
Also oracle comes with a pre-install script which automatically checks for the kernel parameter and patches.
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тАО03-06-2009 12:35 PM
тАО03-06-2009 12:35 PM
Re: memory management
maxswapchunks
msgmap
ncallout
semmap
vx_ncsize
Hence, if the pre-install script is not updated, and if it throws error for above kernel paramater not set, then simply ignore it.