IRO1453I NULL INPUT CONTROL BLOCK ENTERED FOR ALLOCATION
Explanation
This message indicates that the VERIFY function is
not able to allocate the data set because the address of control block
that needs to be allocated is zero.
System action
Processing continues for the remaining members in
the IMS
Database Recovery Facility Extended Functions Verify
report list. However, the generated report might be incomplete.
System programmer response
Check the input control block for allocation.