IDC0512I   NAME GENERATED - (x) dsname

Explanation

Data and index component names are generated by virtual storage access method (VSAM) catalog management, when these names have not been specified.

In the message text:
x
Either a D or an I. It indicates which component the data set names.
dsname
The data set name.

System action

The system continues processing.

Source

DFSMSdfp

Module

IDCDE01