> -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] > On Behalf Of Ed Gould > Sent: Wednesday, October 29, 2014 4:04 PM > To: [email protected] > Subject: Re: DFHSM QUESTION - EXPIRATION OF DSN > > On Oct 29, 2014, at 4:39 PM, R.S. wrote: > > > W dniu 2014-10-29 o 18:47, Gibney, Dave pisze: > >> HSM will happily back-up empty datasets. INVALID datasets are another > >> matter. But, it is an easy matter to define a DEFAULT DATACLAS with > >> DSORG=PS and never have another invalid dataset. > >> > > True. > > However I would prefer to have some feature to avoid creation of > > invalid datasets. > > I saw a lot of invalid datasets and none of them was really need by > > the creator. > > > > R.S. > Define invalid datasets, please.
>From HSM's perspective, they lack a DSORG. Most frequently created by JCL >where the program doesn't actually OPEN the output file for some reason. On non-SMS disk, they can also lack an EOF mark with older z/OS (or perhaps OS390) > > Ed > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send email to > [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
