Match Merge job that cleared members from a PANLIB that were flagged DELETE/DISABLED ran regularly,
then failed with a S0C1-01 when media changed.
PANVALET PAN#2 utility
Release 14.6, though not necessarily significant
Multiple datasets were specified for PANDD3 DD.
Specify just 1 dataset for PANDD3 DD.
Also verify RO57384 is applied: 14.6 S0C1 DURING PROTECTION FILE ++DELETE
See System Management Guide section on "Maintaining Match-Merge/Historical Delete Files"
Match Merge adds the deleted members from the PANLIB (PANDD1) to the last merge/history file (PANDD3) into a new dataset (PANDD2).
PANDD3 should just be your most recent merge file (PANDD2 from previous run), and that Merge File continues to build.