During the start of CA1 the following message is displayed:
IEFTMS13 ***** WARNING - THE TMC AND AUDIT DATASET RESIDE ON THE SAME UNIT ******
Release : 14.0
Component : CA 1 Tape Management
If the TMC and Audit data set reside on the same unit, the TMC cannot be recovered to the point of failure after a hardware failure. It is recommended that the TMC and Audit data sets be allocated to different units, and be defined as physically sequential unmovable (DSORG=PSU) unless on an SMS volume. This is only an informational message and doesn't prevent to start CA1.