Running function 2.2.2 (FIND DUPLICATE APF PROGRAMS) in batch shows many SYS1.LINKLIBs and other libraries from all the shared dasd in the plex:
IDCIO04 000480 CPPDD1 SYS1.LINKLIB
000480 MVSAA1 SYS1.LINKLIB
000480 MVSBB1 SYS1.LINKLIB
000490 MVSCC1 SYS1.LINKLIB
000490 MVSDD1 SYS1.LINKLIB
000490 MVSMM1 SYS1.LINKLIB
000490 MVSRR1 SYS1.LINKLIB
000490 MVSRR2 SYS1.LINKLIB
This is repeated many time for each duplicate module in all of the SYS1.LINKLIBs producing a DUPLICATE APF PROGRAMS report that is over 10,000 pages.