I worked on a system (state govm't) that had ADABAS years ago, mostly it 
depends on what version your running, some tuning opportunities were in the 
latest release, about 2011,2012 timeframe, another tuning opportunity was 
placement of the DB's and index files( ASSOC file) - what I recall back with DB 
performance was DASD CACHE, it was suggested DFW was turned off, IIRC, and the 
ASSOC file and DB be on the same volume? that's all from memory, a good 
resource as Rob has suggested is ADABAS support. 



Carmen Vitullo 

----- Original Message -----

From: "Tony Thigpen" <[email protected]> 
To: [email protected] 
Sent: Thursday, August 2, 2018 10:13:58 AM 
Subject: ADABAS tuning 

Is there anyone that would be willing to give me some guidance to solve 
some ADABAS issues. Something is causing a performance problem and 
nobody seems to even know where to start looking. 

We have several Natural programs that run in minutes one night, then 
take an hour on other nights. We also have some RPG programs (using the 
VSAM bridge) that have similar problems. 

The programmers don't think it has to do with daily work-load changes. 
They want to point the finger at Systems. We (systems) are not making 
changes. 

The 'DBA' belongs to the programmer group, and to be honest, I don't 
think he has a clue concerning performance, just how to define the 
databases. 

At this point, I just need a better idea of where the problem really is 
so I can attempt to throw it back to the DBA. 

-- 

Tony Thigpen 

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