[Default] On 7 Sep 2017 22:56:50 -0700, in bit.listserv.ibm-main [email protected] (Timothy Sipples) wrote:
>IBM first introduced PDSEs about 27 years ago. IBM first introduced Java on >OS/390 about 21 years ago. > >That's a long, long time ago. > >It's impossible to defend stubborn opposition to these and to other highly >mature technologies. Business (and the business of government) will get >done, with or without you. If that's how you choose to (mis)behave, then I >can't criticize managers who decide to chuck you in the garbage heap of >history. If you won't change, then you should be/will be changed. I suppose >we can quibble about how much change makes business sense in particular >contexts, but zero is the wrong answer. In my opinion PDSE design wasn't and still isn't ready for prime time. It couldn't and still can't handle SYS1.NUCLEUS and SYS1.LPALIB because it depends on a started task. While I would agree that SYS1.NUCLEUS could be just a very big IPL text, that still leaves SYS1.LPALIB and any other data sets read during systems initialization. Also the design of limiting PDSE sharing to being within a sysplex contravened what many shops were doing. It is like being required to have BiSync controllers for consoles since channel attached SNA controllers couldn't be accessed until the VTAM started task was up (something that still rankles 30+ years later). In both cases limited functionality enabling use of data sets or devices during system initialization could and should have been built into NIP / SYS1.NUCLEUS or SYS1.LPALIB. I can not comment on the reliability of PDSE when used as specified by IBM with sharing only within a sysplex but the rate of corrective service and frequency of hiper APARs would tell the story. I remember the long teething period for ICF catalogs. Clark Morris > >Jimmy Iovine said it well: "Never stop being of service." > >(My views are my own.) > >-------------------------------------------------------------------------------------------------------- >Timothy Sipples >IT Architect Executive, Industry Solutions, IBM z Systems, AP/GCG/MEA >E-Mail: [email protected] > >---------------------------------------------------------------------- >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
