> -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] > On Behalf Of Ted MacNEIL > Sent: Monday, May 20, 2013 10:40 PM > To: [email protected] > Subject: Re: B37 för FTINCL in ISPF for userid.ISPnnnnn.SPFTEMPn.WORK > datasets > > >Yes, there is the presumed overallocation with release solution. But > many (if not most) allocations don't work with release at allocation. > In most cases this causes waste of space and still x37's. > > Whoa! I'd like to see some examples of such broad (if not, exaggerated) > statement!
I suppose you mainly see the case of allocation for sequential files that have just one update - that at the allocation time. One case is when a PDS(E) is allocated for an undetermined number of members at an undetermined number of updates. And you can't determine this because it is dependent on actions from e g a group of developers that in turn is dependent on decisions taken by project leaders or maintenance circumstances. Or files that depending on many circumstances could be updated from zero to thousand times with data greatly varying in size. And that the time taken to analyze what maybe be needed in every specific case is not available. Either you grossly overallocate and have the possibility of running short of available disk space which is not better than x37's or you take some middle position and got some less, but still significant, problems from both extremes of the scale. Regards Thomas Berg ____________________________________________________________________ Thomas Berg Specialist z/OS\RQM\IT Delivery SWEDBANK AB (Publ) ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
