I believe it was 4.1. Here's an interesting article: http://2000clicks.com/links/Computers/IBMMainframeHistory/mvshist5.htm
-----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Peter Hunkeler Sent: Wednesday, October 04, 2017 9:26 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: When was the *basic* sysplex introduced? MVS/ESA 4.1? I do remember that MVS/ESA V5 (V5.1) introduced the *parallel* sysplex. But I don't remember exactly what MVS/ESA release introduced the *basic* sysplex. ISTR, it was MVS/ESA V4 (V4.1). Correct? -- Peter Hunkeler ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN This email transmission and any accompanying attachments may contain CSX privileged and confidential information intended only for the use of the intended addressee. Any dissemination, distribution, copying or action taken in reliance on the contents of this email by anyone other than the intended recipient is strictly prohibited. If you have received this email in error please immediately delete it and notify sender at the above CSX email address. Sender and CSX accept no liability for any damage caused directly or indirectly by receipt of this email. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
