Timothy, Well said, totally agree. I love z/PDT ..Its great for a small ISV shop .Makes my life easier. I have ran both zVM and z/OS since 1.13 on it.
Scott On Wed, Oct 16, 2019 at 6:57 AM Jousma, David < 000001a0403c5dc1-dmarc-requ...@listserv.ua.edu> wrote: > -----Original Message----- > From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf > Of Timothy Sipples > Sent: Wednesday, October 16, 2019 5:44 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: IBM Z Development and Test Environment (zD&T) > > **CAUTION EXTERNAL EMAIL** > > **DO NOT open attachments or click on links from unknown senders or > unexpected emails** > > Steve Smith wrote: > >That said, I'm pretty sure that does not apply to Dave Jousma, as I've > >worked with him before, and he does want to innovate. > > Agreed, which is why I mentioned "management," which (I can now reveal) is > shorthand for "a bureaucracy that doesn't count Dave Jousma among its > members." :-) > > >>Thanks for that. Depending on who you might talk to, I *might* be part > of the bureaucracy, but I like to think I am not, since I wear both hats. > Manager, and z/OS sysprog. > > (snip) > > > Another tool in the toolbag, typically in conjunction with ZD&T, is z/OS > on z/VM. That's yet another way for developers to get their "disposable" > z/OS instances. IBM itself does a lot of development and testing using z/OS > on z/VM. There are many ways to approach z/OS on z/VM, but one pattern that > works particularly well if you already Linux on z/VM is just to add at > least one CP and one engine's worth of z/VM licensing -- start with one if > you'd like, that's great -- then to have a single "z/VM mode" development > LPAR that spans your IFLs and that CP. Yes, you can do that (subcapacity > z/VM, z/VM mode LPAR). Thus without changing the number of LPARs and barely > changing your z/VM licensing, developers can spin up/down lots of > disposable z/OS instances on z/VM. You can even using z/VM's cloud > provisioning capabilities for "walk up" developer services. > > >> If given the chance, I'd prefer this approach over ZD&T. Why? Because > it would be much easier to build, clone, maintain, and keep it in some sort > of reasonable freshness. Maybe it's time to revisit that over ZD&T, since > the costs for ZD&T were fairly substantial. We did do a z/VM Linux on Z > POC here like 5 years ago. No problem standing up VM, and had a couple of > Linux on Z instances running. For us the deal killer was the cost case, > and probably less of an issue now, but the "turf" war. The team that > supports AIX/Linux here at that time were not running much Linux anywhere > and it was not yet a bank strategic platform, and in addition wanted no > part of running something on Z, even though they were part of the POC, and > we made it well known that even though it was running on Z, they would > still be the owners. > > This e-mail transmission contains information that is confidential and may > be privileged. It is intended only for the addressee(s) named above. If > you receive this e-mail in error, please do not read, copy or disseminate > it in any manner. If you are not the intended recipient, any disclosure, > copying, distribution or use of the contents of this information is > prohibited. Please reply to the message immediately by informing the sender > that the message was misdirected. After replying, please erase it from your > computer system. Your assistance in correcting this error is appreciated. > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > -- *IDMWORKS * Scott Ford z/OS Dev. “By elevating a friend or Collegue you elevate yourself, by demeaning a friend or collegue you demean yourself” www.idmworks.com scott.f...@idmworks.com Blog: www.idmworks.com/blog *The information contained in this email message and any attachment may be privileged, confidential, proprietary or otherwise protected from disclosure. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution, copying or use of this message and any attachment is strictly prohibited. If you have received this message in error, please notify us immediately by replying to the message and permanently delete it from your computer and destroy any printout thereof.* ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
