Steve's post prompts me to relate our MVS Unix/Linux experience - this is in no way meant to disparage Steve's efforts for courses...
>Now, the ability to run UNIX on the mainframe melds a lot of strengths: >flexibility (run classic mainframe apps and UNIX apps on the same box), You'd better not. We are running a clustered Lotus Domino Server on our boxes and have to run several unix apps (ADSM - whatever that's called these days, WBIFN - gateway to the SWIFT net and Websphere Application Server). We found out very fast that these beasties tend to take over more than their share of processing power, so all of these UNIX apps quickly got their own lpar where traditional workload did not have to compete with these cpu hogs. >scalability, reduced footprint, reduced footprint?!? Even confined to their own lpars, the Dominoes take everything in terms of assigned processors and lpar weight, to the detriment of other lpars. And if these Unix dominated lpars don't get what they want, they stop working altogether. We are in the process of moving the UNIX apps to Linux under VM, where they can use the other type of processors and save us a lot of software costs (BMC is killing us, followed by CA.) Did I mention that we now run almost as many Linuxes as we run MVS lpars? Reduced foortprint?!? >Utilize the legendary strengths of the mainframe One of which was first failure data capture (and it worked, too, given the right knowledge in looking at a dump). All of these UNIX apps have never even heard the term first failure data capture, much less are familiar with the concept. With the exception of maybe one (stupid) user error on our part, IBM has proved incapable time and again to look at dumps (even those written by the product itself) and find a problem. Unless you can reproduce the problem, provided you have an inkling how, you get a lot of crap which always involves restarting a high availability application. And without a complaint on top a sev1/prio1 IBM doesn't even look at the problem, much less solve it. Even with a complaint, all we get is what we call in German 'holding hands' - meaning they commiserate with us but only attempt to calm us thus infuriating us more. I'd better stop here.... Regards, Barbara Nitz -- Echte DSL-Flatrate dauerhaft für 0,- Euro*! "Feel free" mit GMX DSL! http://www.gmx.net/de/go/dsl ---------------------------------------------------------------------- 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
