Where did you see that quote? I used to teach an (in-house) Intro to Mainframes class. I used that statistic in the class. I tried to track down something specific (data? business data? critical business data?) and authoritative (IBM, Gartner, etc.). I did not succeed.
Also, the quote I have usually seen is "seventy percent." Are mainframes losing ground? Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Phil Smith Sent: Saturday, June 08, 2013 8:47 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Why does IBM keep saying things like this: 65% of the world's data resides on the mainframe. Surely YouTube alone stores more data than resides "on" all the mainframes in the world?! Well, let's see: http://www.youtube.com/yt/press/statistics.html says that "72 hours of video are uploaded to YouTube every minute". A minute of video is about 1MB. So 72*60*1440*1000000 = 6,220,800,000,000 So 6TB/day. In a year: 2,270,592,000,000,000 So 2 petabytes/year. And that's just YouTube-no Facebook, no Pinterest, no photo storage sites. I'm as big a fan of System z as anyone, but statements like this make it look like IBM can't do basic math. Not good. And I see it again, and again, and again... ...phsiii ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
