Santa Has a Mainframe


Just think about it: “He sees you when you’re sleeping.  He knows when you’re awake.  He knows if you’ve been bad or good.” – how can Santa do all that?  Consider that these events alone would generate over 600 million transactions per day. Let’s do the math.  There are over 200 million children in the world.  Assuming each child only wakes up once per day, that would be 2 transactions.  In addition, we can assume that each child would create … [Read more...]

Institutional Knowledge — or What Lewis and Clark Didn’t Know they Didn’t Know


The weather of the Pacific Northwest is controlled by the Pacific Ocean and the local mountain ranges, the Olympics and the Cascades.  This combination gives way to a phenomenon known as rain shadows, small geographical areas that get much less rainfall than surrounding areas. The most extreme example is Sequim, Washington. It gets less than 16 inches per year (roughly the same as Los Angeles). About twenty miles away is the Hoh Rain Forest that … [Read more...]

What’s Your Limit in the Mainframe Universe?

Have you ever been asked, “What’s your limit?” Well, for IBM mainframes, there are lots of limits! Do you have one in mind? Do you know what your limits are? Limits are more easily understood if we classify or clarify the usage of “limit.” Some limits are, for example: architectural, practical, theoretical, implementation and let’s not forget, testing (or tested) limits.  How do all of these play out in the mainframe universe? There are many … [Read more...]