How can you list PDSE members who have not been accessed?
PDSMAN
z/OS
User should use PDSM07 to report all members. Each member's Last Reference
Date is reported. PDSM07 will show '-- None --' if the member does not have a Last Reference Date.
Sample JCL
//S1 EXEC PGM=PDSM07[,PARM='msel']
//PDSMRPT DD SYSOUT=class
//PDSMPDS DD DSN=datasetname,DISP=SHR
//PDSMCDS DD DSN=control.dataset,DISP=SHR (optional)
//PDSMSEL DD * (optional member selection)
Additionally, if site is using EZYEDIT, then users can get into a Member list for a
PDSE scroll RIGHT to the ' LastRef ' field. to see if there is a Last Ref Date stamp.
This field will show blanks if the member does not have a Last Reference Date.
PDSMAN Documentation link below - Description and details of PDSM07
https://techdocs.broadcom.com/us/en/ca-mainframe-software/traditional-management/ca-pdsman-pds-library-management/7-7/using/member-archiving-and-recovery-facilities/recording-member-last-reference-dates/use-pdsm07-to-report-last-reference-dates.html