[email protected] (Bill Fairchild) writes: > It was. ECKD was announced in the early- to mid-80s, which was 25+ > years ago, which is several decades ago. Not all users respond > quickly.
re: http://www.garlic.com/~lynn/2011e.html#31 "Social Security Confronts IT Obsolescence" oh, the missing linkedin URL reference: http://lnkd.in/ajGuA2 reference was to "CKD" disks didn't change ... controllers added some extra stuff (eckd) ... originally for "Calypso" ... the 3880 controller speed-matching buffer ... allowing 3380/3880 3mbyte connenction to (370/168 2880) 1.5mbyte channels ... which had enormous problems (that wouldn't/don't exist w/FBA). old email discussing calypso (eckd) and how bad the problems were (several severity ones in the field): http://www.garlic.com/~lynn/2007e.html#email820907b above also mentions the dismal prognosis of ever getting MVS to support FBA (I've periodically mentioned in the past about being told that even if I provided MVS with fully integrated & tested FBA support, I still needed $26M business case to cover education and pubs ... and I couldn't use lifecycle savings ... only incremental new sales). past posts with references to calypso/eckd: http://www.garlic.com/~lynn/2004o.html#7 Integer types for 128-bit addressing http://www.garlic.com/~lynn/2007e.html#40 FBA rant http://www.garlic.com/~lynn/2007f.html#0 FBA rant http://www.garlic.com/~lynn/2008q.html#40 TOPS-10 http://www.garlic.com/~lynn/2009k.html#44 Z/VM support for FBA devices was Re: z/OS support of HMC's 3270 emulation? http://www.garlic.com/~lynn/2009p.html#11 Secret Service plans IT reboot http://www.garlic.com/~lynn/2010e.html#36 What was old is new again (water chilled) http://www.garlic.com/~lynn/2010h.html#30 45 years of Mainframe http://www.garlic.com/~lynn/2010n.html#14 Mainframe Slang terms -- virtualization experience starting Jan1968, online at home since Mar1970 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
