I worked on a production 7060 (MP3000) H30 for several years. We did not use the internal DASD. The H30 was connected, via ESCON, to a 2105. The only thing emulated on that box was the OSA, which used the Ethernet card(s) on the PC. Was it better than a z800 or z900, definitely not! But that was all the organization could afford at that time. It served us for almost eight years. We ran a production and test CICS region, TSO/ISPF, and batch.
Heck, when we converted to z/OS 1.4 from OS/390 2.10, I actually created a Integrated Coupling Facility LPAR, and SYSPLEX'ed the production OS/390 2.10 LPAR to a test z/OS 1.4 LPAR for testing purposes. -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Tony Harminc Sent: Tuesday, December 13, 2016 11:50 AM To: [email protected] Subject: Re: LzLabs in ComputerWorld On 13 December 2016 at 10:34, R.S. <[email protected]> wrote: > I dare to disagree. My turn... > Although MP3000 was better than MP2000, it was still nothing good. It was *much* better than the MP2000. Very much faster. It was a 390 G5 CPU. Even 2 x G5 on the top model (H50). A note on the "development only" idea about this machine. There *were* development (PWD) models. We had one, at a much reduced price, and we also had a free "Linux option" that kept the model number unchanged (P30), but doubled the CPU speed and doubled the memory. IIRC the non-PWD models were H30 and H50. > As a demonstration/learning/portable machine it was much to big. Sure. The old P390s were about the best for that. But you could always connect remotely. > As a production or development machine the I/O was really poor. Well... Don't mix the two kinds of I/O. There was the P390/Integrated Server style of I/O, all done by OS/2 through the (16-bit!) drivers taken unchanged from the P390. This was used for OS/2's own purposes (C drive, etc.) and it was possible to map emulated 390 DASD to OS/2 files on this space, exactly as on P390. But the "real" DASD I/O was via an STI cable from the G5 CPU to a PCI card on the passive backplane. The array of SSA drives connected to the same PCI bus, and that I/O was done with no involvement of OS/2 or even the Intel CPU. > No real channels except ESCON. There was a parallel channel, but IIRC not supported for DASD. Tape and UR only. But did you really have old DASD that you wanted to connect via Bus & Tag? Maybe a 3380... > No sysplex capability. A lot of SPOFs. Yes - SPOF were a problem for a production shop. Though OS/2 could crash and be rebooted without crashing the G5. But who wants Sysplex on a machine that size, except a development shop (ISV)? > z800 and followers were not much more expensive, but it's functionality was > significantly better. z800 + DASD + network interface + TN3270/console support of some kind came out to a lot more money. But of course speed of a 64-bit program on the MP3000 = 0 MIPS... Tony H. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN FIRST TENNESSEE Confidentiality notice: This e-mail message, including any attachments, may contain legally privileged and/or confidential information. If you are not the intended recipient(s), or the employee or agent responsible for delivery of this message to the intended recipient(s), you are hereby notified that any dissemination, distribution, or copying of this e-mail message is strictly prohibited. If you have received this message in error, please immediately notify the sender and delete this e-mail message from your computer. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
