In college, we had a 360/40 running PCP (Primary Control Program) in 64K; iirc, PCP could not be patrtitioned.
I worked one summer for a company that had a 256k 360/40 running MFT with (typically) 4 partitions. Iirc, it took an IPL to reconfigure MFT. (M = multimple, F = fixed) I belive MVT (V = variable) was the first OS360 operating system that suppored dynamic repartitioning, but I could be wrong. I never experienced MVT - just went from MFT to SVS to MVS..... Randy -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Lloyd Fuller Sent: Friday, March 02, 2012 8:32 AM To: [email protected] Subject: Re: TINC? It could be that the spooler was really a resident writer. I was just a newby programmer, and know that we were told that requiring more than a certain amount of memory required a major operations change and was frowned on. It was definitely not DOS/360. It was OS/360 and used JCL with DCBs, etc, not the DOS/360 stuff. Lloyd ----- Original Message ---- From: John Gilmore <[email protected]> To: [email protected] Sent: Thu, March 1, 2012 4:09:02 PM Subject: Re: TINC? Shmuel/Seymour wrote: <begin extract> NFW. There was only a single partition on PCP. Based on the model I'd guess that you were running DOS/360. </end extract> and it is correct, albeit in a Pickwickian sense, that OS/PCP "had only a single partition"; but it did support both transient and resident readers and writers; there were even some very primitive to-2311-DASD RYO spoolers in use; and at this remove Lloyd Fuller's confusion may be only a terminological one. Still, I too guess that he may have been using DOS. --jg On 3/1/12, Shmuel Metz (Seymour J.) <[email protected]> wrote: > In <[email protected]>, on > 02/29/2012 > at 05:01 AM, Lloyd Fuller <[email protected]> said: > >>No. When we used PCP on the Model 40 with 64K. We had a single job >>partition and, most of the time, a spool partition. > > NFW. There was only a single partition on PCP. Based on the model I'd > guess that you were running DOS/360. > >>It was a very simple partition (like 10K or so) that ran the 1401 > > What are you trying to say? The 1401 was a computer, not a program. If > you meant that you ran the 1401 Emulator program, that confirms that > it was DOS. > >>If we needed more memory for a specific purpose, we would reipl from a >>different pack and bring up OS360 with just the program partition. > > Another sign that you were not running OS/360; on an OS/360 system > with multiple partitions you can amalgamated partitions with the > DEFINE command; you don't need to re-IPL. > > -- > Shmuel (Seymour J.) Metz, SysProg and JOAT > ISO position; see <http://patriot.net/~shmuel/resume/brief.html> > We don't care. We don't have to care, we're Congress. > (S877: The Shut up and Eat Your spam act of 2003) > > ---------------------------------------------------------------------- > 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 ---------------------------------------------------------------------- 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
