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: