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I have a table A with 30,000 Records.

Module B  selects the data from the table A.

This  module B is  called  via online(CICS) and Batch mode.

This Module  is called 30 million times in day. 20% of traffic is via Online mode and 80% of traffic is via Batch Mode.

In a second this Table is referred 30 times and in a minute 4500 times.

Each time Module B is triggered it selects data from Table A.

Whenever I do a select to table A. IO is caused and by…