Ahhh. Cool. That makes sense. Many thanks for the answer. And congrats; sounds like it was indeed a challenge.
First Horizon Bank Mainframe Technical Support -----Original Message----- From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of Pew, Curtis G Sent: Friday, July 3, 2020 5:06 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Mainframe co-op [External Email. Exercise caution when clicking links or opening attachments.] On Jul 3, 2020, at 3:30 PM, Jackson, Rob <rwjack...@firsthorizon.com> wrote: > > I'm curious: what about adding zIIPs was challenging? 1. Determining what our zIIP and non-zIIP capacity needs would be. In other words, since we didn’t have zIIPs before we weren’t sure how much of our workload would actually run on the zIIPs. 2. The biggest thing was that we are an Adabas/Natural shop, so we were hoping to run both those products zIIP-enabled. However, we have a home-grown security system that’s implemented by several thousand lines of assembler code that runs as a part of the Natural session, and this code was doing things like issuing SVCs and examining the current TCB, and those things don’t work when you’re running zIIP-enabled. So the challenge was if we could rewrite all that code to work on zIIPs. (And see “how much of our workload could run zIIP-enabled” above.) We were able to get the code rewritten, and we’ve been very happily running Adabas and Natural zIIP-enabled ever since. -- Pew, Curtis G curtis....@austin.utexas.edu ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN 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 lists...@listserv.ua.edu with the message: INFO IBM-MAIN
