Radoslaw Skorupka wrote: >Q: was it possible to connect Amdahl or Hitachi machines with >IBM CPC using sysplex links? >Did they use the same hardware and protocol?
It seems so. Bitsavers.org preserved these Amdahl brochures: http://www.bitsavers.org/pdf/amdahl/brochures/AmdahlMillenniumCoupling500E.pdf http://www.bitsavers.org/pdf/amdahl/brochures/AmdahlMillenniumCoupling400.pdf These brochures suggest that Amdahl (by that time a Fujitsu subsidiary) offered Coupling Facility (CF) machine configurations that supported both Amdahl and non-Amdahl machines ("other Parallel Sysplex capable processors") at least by 1998. IBM announced Parallel Sysplex on April 6, 1994: https://www.ibm.com/common/ssi/cgi-bin/ssialias?appname=skmwww&htmlfid=897%2FENUS194-080&infotype=AN&mhq=sysplex&mhsrc=ibmsearch_a&subtype=CA The first Parallel Sysplex hardware, notably including the first Coupling Facility machine (the 9674 Model C01), was generally available starting later in the same quarter (in June, 1994). My understanding is that back then you had to use a dedicated CF machine, preferably a pair for availability reasons. Amdahl's brochures seem consistent with that sort of configuration. The ability to add CF functions within existing IBM mainframe footprints (non-dedicated CFs, a.k.a. ICFs) arrived not *too* long after June, 1994, but this is all historical for me. As far as vendors besides Amdahl, certain IBM software licensing publications still refer to CF configurations involving non-IBM machines from multiple vendors. See here for example: https://www.ibm.com/downloads/cas/MELGBJPZ I wouldn't assume anyone is still running any of these ~25 year old non-IBM coupled system configurations. But if anyone still is then IBM conveniently still has software license pricing and terms in its catalogs. — — — — — Timothy Sipples Senior Architect Digital Assets, Industry Solutions, and Cybersecurity IBM zSystems/LinuxONE, Asia-Pacific sipp...@sg.ibm.com ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
