So would a person not be better off -- well, would not the MVS system "be better off" -- have more options -- by specifying LOC=(31,64)? Why is it not the default?
Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of Jim Mulder Sent: Thursday, December 16, 2010 6:40 PM To: IBM-MAIN@bama.ua.edu Subject: Re: Why not STORAGE OBTAIN LOC=(31,64)? > What are the reasons, if any, that one would NOT specify 64-bit backing > storage on a STORAGE OBTAIN? Not specify LOC=(whatever,64)? > > Are there any circumstances other than a program that explicitly dealt with > real addresses that would make backing storage above the bar likely to be > problematic? No, there are not. > I don't see a clear statement of what the default is if one specifies, for > example, LOC=31. Is that equivalent to LOC=(31,31) or LOC=(31,64)? The book says: LOC=31 and LOC=(31,31) indicate that virtual and central storage can be located anywhere below 2 gigabytes. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html