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 CPPDR1 SYS1.LINKLIB
               000480 MVSAR1 SYS1.LINKLIB
               000480 MVSBR1 SYS1.LINKLIB
               000490 MVSCR1 SYS1.LINKLIB
               000490 MVSDR1 SYS1.LINKLIB
               000490 MVSMR1 SYS1.LINKLIB
               000490 MVS3R1 SYS1.LINKLIB
               000490 MVS5R1 SYS1.LINKLIB T

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.

Release:
Component: EXAMIN

Review contents of PROGxx or IEAAPFxx members in SYS1.PARMLIB.
If you have multiple versions of a library (for example SYS1.LINKLIB) with different
volumes specified in a single member, you may want to change the entries to  just one entry with VOLUME(******).
This special value means to only use the library that is on the SYSRES volume (IPL VOLUME).