A more modern approach to the EVNTDB control interval size (CISIZE)

Document created by zeiar01 Employee on Oct 31, 2017
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EVNTDB is the file transfer events log. It is a local VSAM and its run-time DD name is EVNTDB.


Considering new disks (such as IBM DS8800 models 3/9/27/54) and their better exploitation         the

current value of 4096 (4K) for EVNTDB CISIZE (DATA and INDEX portions) is not the most suitable.


This new configuration has been recently tested successfully at a customer:


  1. EVNTDB DATA and INDEX portions using CONTROLINTERVALSIZE(32768)
  2. /PARMS group LSRPOOL had this added to 'Pool Specifications': 32K=6