glenn.schn...@suntrust.com (Schneck.Glenn) writes: > Although there may be some 'success' stories the issue I have with most > vendors is where they tout - We migrated this company off the mainframe > and save 10,000+ MIPS. In reality they probably moved a small > application of about 1000 - 2000 MIPS which happened to be the last one > on the mainframe.
a couple bits from similar thread in (linkedin) Mainframe Exports http://lnkd.in/2syFGU Cloud Use Rises, Mainframe Usage Declines as Data Centers Grow and Green, According to AFCOM Survey http://eon.businesswire.com/news/eon/20110330005393/en/cloud/disaster-recovery/data-center from above: Demise of the Mainframe: While historically one of the most critical elements of any data center, today, mainframe usage continues to shrink. While AFCOM predicts mainframes will exist forever in some capacity, their prevalence has been severely diminished. ... snip ... BM Sees A Big Boost As It Turns 100 http://www.npr.org/2011/12/28/143834727/ibm-sees-a-big-boost-as-it-turns-100 from above: The company sold its PC business 6 years ago, and now, more than 83 percent of its business is services and software. Sign a contract with Big Blue and you get consulting, cloud computing, servers, analytics, even financing. ... snip ... compared to mid-80s when top management was predicting mainframe sale growth would double corporate revenue (from $60B to $120B, approx $252B today) and instituted a massive building program to double mainframe manufacturing ... this was at a point when there were already indicators of mainframe business heading in the opposite direction ... and the company goes into the red a few years later. Note that in above, that remaining 17% revenue would include everything else besides software&services (aka all kinds of hardware & platforms) note that in addition to failures migrating off of mainframe ... there has also been some number of monumental re-engineering failures ... involving staying on the mainframe (any major change at all ... even when not changing the mainframe) as I've periodically pontificated in the past ... there are numerous mega-datacenters around the world ... any one of the mega-datacenters possibly having more aggregate processing power than current total installed traditional mainframes. estimated 10,000 mainframes at 4,000 to 5,000 customers around globe http://articles.economictimes.indiatimes.com/2010-08-10/news/27620495_1_mainframe-ibm-big-challenge zEnterprise 196 can execute 50BIPs/second http://www.foxnews.com/scitech/2010/09/01/ibm-unveils-worlds-fastest-microprocessor/ Intel Core i7 at 177,730 MIPs/sec http://en.wikipedia.org/wiki/Instructions_per_second or almost 180BIPs/sec ... which makes i7 equivalent of more than three z196?? mega-datacenters have been quoted at half-million to over million processors. -- virtualization experience starting Jan1968, online at home since Mar1970 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: INFO IBM-MAIN
