Managing open data sets

DFSMSrmm produces a report in the MESSAGE file as shown in Figure 1 that lists tape data sets that might be open as well as messages describing expiration processing.

Figure 1. Expiration processing report

EDG2404W VOLUME 111020 FOR JOB STSGGWC1 IS OPEN - VOLUME HAS EXPIRATION DATE 16/03/1993
EDG2404W VOLUME 111023 FOR JOB STSGGWC1 IS OPEN - VOLUME HAS EXPIRATION DATE 16/03/1993
EDG2229I NUMBER OF VRS RECORDS READ IS 4
EDG2238I NUMBER OF UNUSED VRS RECORDS IS 2
EDG2427I INITIAL NUMBER OF EXPDT RETAINED VOLUMES       = 728 69%
EDG2428I NUMBER OF EXPDT RETAINED VOLUMES TO BE DROPPED = 0 0%
EDG2420I PHYSICAL VOLUMES READ                          = 1041 97%
EDG2420I LOGICAL VOLUMES READ                           = 20 2%
EDG2420I STACKED VOLUMES READ                           = 10 1%
EDG2420I TOTAL VOLUMES READ                             = 1071 100%
EDG2421I PHYSICAL VOLUMES UPDATED                       = 303 29%
EDG2421I LOGICAL VOLUMES UPDATED                        = 10 50%
EDG2421I STACKED VOLUMES UPDATED                        = 10 100%
EDG2421I TOTAL VOLUMES UPDATED                          = 323 30%
EDG2424I TOTAL VOLUMES, THIS RUN, SET PENDING RELEASE   = 110 10%
EDG2425I TOTAL VOLUMES RETURNED TO SCRATCH              = 203 19%
EDG2426I TOTAL NUMBER OF SCRATCH RECORDS WRITTEN        = 0 0%
EDG2429I MAIN INVENTORY MANAGEMENT UPDATES HAVE COMPLETED SUCCESSFULLY
EDG2307I INVENTORY MANAGEMENT TASK VRSEL    COMPLETED SUCCESSFULLY
EDG2307I INVENTORY MANAGEMENT TASK DSTORE   COMPLETED SUCCESSFULLY
EDG2307I INVENTORY MANAGEMENT TASK EXPROC   COMPLETED SUCCESSFULLY
EDG2307I INVENTORY MANAGEMENT TASK RPTEXT   COMPLETED SUCCESSFULLY
EDG6401I MASTER FILE BACKUP SUCCESSFUL

These might be valid cases, or jobs that are currently active. However, some data sets on the list might be produced by a job that failed so the data set was never closed. Review this list and make the necessary corrections. The expiration date in the message, shows when the volume will be automatically released. During vital record processing, DFSMSrmm matches open data sets to vital record specifications using the OPEN reserved data set name mask or to vital record specifications defined with data set name masks.