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тАО12-28-2004 11:22 AM
тАО12-28-2004 11:22 AM
Maximize thoughput on Oracle DB and HP3640 snf EVa5000
I remember for the SUN 15k we used "ndd" and adjusted something. Is this needed to optimize the data thoughput in the HP equipment. We are running new software Oracle 10g, Hp 11.23 and not using service guard.
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тАО12-28-2004 06:11 PM
тАО12-28-2004 06:11 PM
Re: Maximize thoughput on Oracle DB and HP3640 snf EVa5000
Of course not so easy to do with a running system. Only with a new creation of a database.
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тАО12-28-2004 06:49 PM
тАО12-28-2004 06:49 PM
Re: Maximize thoughput on Oracle DB and HP3640 snf EVa5000
I need someone that really knows the storage at a lower level.
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тАО12-28-2004 06:56 PM
тАО12-28-2004 06:56 PM
Re: Maximize thoughput on Oracle DB and HP3640 snf EVa5000
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тАО12-28-2004 07:00 PM
тАО12-28-2004 07:00 PM
Re: Maximize thoughput on Oracle DB and HP3640 snf EVa5000
for i in 512 1024 4096 8192 16384 32768
do
times dd if=/dev/array of=/dev/null bs=${i}
done
It will give you an indication of the optimal raw data speed when reading from the diskarray.
And take a file which is larger then could possibly fit in the diskarray's cache, so it has to come somehow from disk.
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тАО12-28-2004 07:26 PM
тАО12-28-2004 07:26 PM
Re: Maximize thoughput on Oracle DB and HP3640 snf EVa5000
Can you change the read block size when using FiberChannel? or is that a Ethernet only thing.
What we have are several HP EVA5000's and that is what we are trying to maximize.
The actual system is a write-once read many system with over 1 million rows inserted a second. That is why we need this optimal.