Michael So as an interim step in a decades-long migration "off the mainframe", the 3745 is to be sunset. What we have which can be used to replace it for admittedly a very low traffic requirement is an OSA feature.
That being so, what I said last time about how to replace the 3745 with the OSA feature looks just fine to me. Is there anything about that with which you need clarification? One minor adjustment is that what I said about TN3270. >...> We have the IP TN3270 already on the OSA card ... This implied you were using ICC. Since you would appear to be using the z/OS Communications Server TN3270 server function or the "TCP/IP for MVS" TN3270 server function already[1], that just eliminates part of the migration I assumed might be necessary. I believe, in effect, you have already configured the OSA feature port for OSE channel type. You are currently running only IP but, with the aid of OSA/SF customization, you can add SNA capability. The OSA feature looks like the sort of OSA-2 on which I honed my early OSA skills around 2000 such as all the ways to install OSA/SF and how to set it up to be shared by SNA and IP. I think that OSA-2 had the possibility to run either Ethernet or Token Ring and you had to decide which you wanted. I found this snippet in the oldest OSA manual, "OSA Planning", "on" the OSA/SF shelf - which quixotically is where you are obliged to look for OSA manuals - I could find for the oldest z/OS release to which I - easily - have access, 1.1.[2] </quote> 3. Unique among OSA-2s, an ENTR OSA-2 has two physical ports, each of which can be connected to either an Ethernet LAN segment or a token-ring LAN segment. The other OSA-2s have only one physical port. </quote> >...> ... with an OSA card that supports Ethernet and Token Ring only on port and the Token Ring connection. I think what you might have been saying here in your first post is that your OSA feature supports Token Ring and[3] Ethernet but has just one port. Also that it's the Token Ring plug to which you have a connection. That snippet confirms that you use either Ethernet *or* Token Ring. > The OSA card has a Ethernet port and a Token ring port. This from your latest post states two *ports* but it may be that you mean two *plugs*. You don't actually need a second port in order to share a single port for both IP and SNA. You just need to get to grips with OSA/SF - in case you have managed to avoid it so far. Incidentally, I was on a consultancy when I earned my OSA and OSA/SF spurs and, being a conscientious consultant, I documented everything and I've held onto the documents. Some might argue that the documents belong to the customer who was paying me at the time and so might challenge my conscience! Presumably you are retaining the 3174 and its attached devices pending the "reengineering" of the application(s) which rely on them for the business. If the 3174 also through sheer decrepitude for example needs a one-for-one replacement, your 3174 and 3270 devices could be replaced by workstations running Windows and Personal Communications software. I can see that when the "migration" started "migration off the mainframe" was on every suit's coffee table but I wonder if the suit responsible or his or her successors - the ones lined up by the original suit to take the blame - has/have taken a recent look at the glossy magazines on the coffee table and seen that "migration off the mainframe" is not now so fashionable. The trouble with fashion is that it can be so last year - or last decade - and especially last century! Chris Mason [1] I'm unclear about exactly when "TCP/IP for MVS" and VTAM combined to form z/OS Communications Server. It may have followed OS/390 V1R3. It actually doesn't change any of what I am proposing. [2] http://www-03.ibm.com/systems/z/os/zos/bkserv/r1pdf/#osasf [3] This should be "or" according to the snippet I found but you don't know that from just looking at it and "hope springs eternal ..." On Fri, 16 Apr 2010 01:37:49 -0500, Michael Saraco <michael.sar...@baer- CONSULTING.COM> wrote: What follows showed up as total garbage so I'm cutting the lot!!! ---------------------------------------------------------------------- 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
