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Dedicated server to MTS changeover

From: VIVEK_SHARMA <VIVEK_SHARMA_at_infosys.com>
Date: Mon, 28 Apr 2003 09:06:41 -0800
Message-ID: <F001.0058AA03.20030428090641@fatcity.com>

On moving Database from Dedicated server Oracle connections to MTS what may be the best practices , performance parameters , suggested tuning ?

Following is our strategy for your perusal :-

There are about 3000 concurrent dedicated server connection processes to the Database before moving to MTS .

6 Listener processes (remains unchanged moving from Dedicated server to MTS) MTS_DISPATCHERS=15 per listener
Therefore the total number of dispatchers for 6 listeners = (15 * 6) = 90 MTS_SERVERS=400 ( 3000 / 10 approx.) (Number of shared servers to spawn on database startup) MTS_MAX_SERVERS=1000
LARGE_POOL_SIZE = 1400 MB ( MTS_SERVERS * 3.5 MB i.e. 400 * 3.5 MB ) SESSIONS = 50 (MAX. 50 User processes handled per Dispatcher ) shared_pool_size increased to 150 MB from 115 MB to handle additional info. written to shared pool in MTS mode

Thanks

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Author: VIVEK_SHARMA
  INET: VIVEK_SHARMA_at_infosys.com

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