We fell over once because we had JCL with REF=data.set.name, and/or DCB= data.set.name This dataset was deleted as part of a cleanup and our JCL failed. I dont know how this appears in DCOLLECT Colin
On Wed, 8 May 2024 at 13:17, Jason Cai <ibmm...@foxmail.com> wrote: > Dear all > > I am reaching out to discuss a specific operation we are considering for > our z/OS DCOLLECT reports. Currently, we are planning to delete all the > datasets where LASTREF=NONE and DSORG=PS. This operation seems crucial for > system maintenance and optimization, yet I wanted to clarify any potential > risks associated with this action. > As far as I understand, LASTREF refers to the last accessed date of the > file. Hence, LASTREF=NONE implies that the file has not been accessed since > its creation. Could you confirm if my understanding is correct？ > Additionally, I have been attempting to search for more information about > LASTREF=NONE in the IBM manual, but my efforts have yielded limited > success. If possible, could you kindly guide me on how to navigate the > manual to find specific information like this one or recommend any reliable > resources where such details may be more readily available? > > Lastly, does IBM have any specific requirements regarding the closure of > PS datasets? By this I mean if a PS has been opened and never closed, would > the LASTREF also be none? > > Any advice or insights you have on this matter would be highly > appreciated. > Looking forward to your helpful response. > Best regards, > Jason Cai > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
