Thanks for the response Enrico.enrico-sorichetti wrote: the answer depends on the reason of the research.
- cost saving ,
-- 1 - see if the software You want to get rid of writes smf records
-- 2 - look at the docs to find the main executable and look at the smf records for program loads
and ... process the smf data accordingly
- for any other reason the only way is the donkey way
collect the names of the load modules in all the load libraries of Your organisation
match the result with the smf data .
but You might find that many IBM provided zOS/additional-product load modules have never been used
for APPLICATION programs the interval to be checked is the longest application cycle plus some slack
There sort of is with the LINKLIST -- which is how programs can be executed without having a STEPLIB or JOBLIB specified. However, the LINKLIST at most sites contains many dozens of libraries, and some vendor programs do not install into a LINKLIST library, so it is not an infallible method. Furthermore, you don't get "last updated" -- modules are replaced by system updates so at best you can only tell about when the update was installed and that can be misleading since some system programs may not have been updated for a long time.Is there no common library on zOS, like "Program Files" on windows where we could the possible programs installed already though it won't tell abut their usage but "last updated" date might give a hint. There is not something similar in mainframes?
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