[email protected] (Ed Gould) writes: > I cannot remember where my first run in with VSE was. It was a LONG > time ago. Probably im the mid 70's (???). I think it was in St Louis > at an IBM school there.We were trying to set up a 4331 for our New > York Office. It was either there or out in the LA IBM office. All I > can remember is that I did not like it in general. It was not > consistant on how it handled "things" (control cards and the like) its > been so long that the abiortion must have reconcieved. I dio remember > thinking IBM was out of their gourd for propegatting it and it shouuld > have been put on suicide watch (I would have helped pull ther > trigger).
... 79?, maybe later ... mid-70s was 138/148 ... follow-on to 135/145 ... still vs1 & dos/vs in the failure of future system project ... there was mad rush to get stuff back into the 370 product pipeline (most activity had been killed off during the future system period) htpt://www.garlic.com/~lynn/submain.html#futuresys high-end did 303x ... 3031 & 3032 were repackaged 158 & 168 ... and 3033 started out with 168 wiring diagram map to chips that were 20% faster. chips also had ten times as many circuits ... initially mostly unused ... but during the product development some redesign to use the additional circuits got 3033 up to 1.5 times 168 (instead of 1.2 times). In parallel with 303x ... things started on "XA" ... for awhile known as "811" for nov78 date on many of the documents ... which eventually resulted in 3081. some discussion of both FS & 3081: http://www.jfsowa.com/computer/memo125.htm some of the benchmarks were being done on the engineering 4341 in the disk product test labs for the endicott performance test group ... since i seemed to have better access to (endicott) 4341 than they did. and with the failure of FS, mid-range started work on "E" architecutre ... and in 79 came out with 43xx machines (followon to 138 & 148) that supported both vanilla 370 and "E" (somewhat akin to 3081 with 370 & "XA" modes). misc. past 43xx email ... starting in jan79 doing benchmarks on engineering 4341s: http://www.garlic.com/~lynn/lhwemail.html#43xx "E" architecture was somewhat akin to initial VS2 (SVS) with much of the single virtual address space moved into microcode/hardware. 4341 announced 30Jan1979: http://www-03.ibm.com/ibm/history/exhibits/mainframe/mainframe_PP4341.html the above mentions 4341 supported 3370 ... which was the mid-range disk ... and was FBA. There was no mid-range CKD at the time ... which sort of left MVS out of the big explosion in the mid-range market ... could upgrade 370 and continue to use existing legacy DASD ... but was difficult to see MVS on all the 43xx that were starting to proliferate all over corporations in departmental conference rooms and supply rooms. Eventually 3375 was produced which was CKD emulated on 3370 FBA ... to address the lack of MVS support for FBA. misc. past posts mentioning FBA & CKD http://www.garlic.com/~lynn/submain.html#dasd -- virtualization experience starting Jan1968, online at home since Mar1970 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
