<snip>
Sorry, but I don't see sysplex as being "tightly coupled."  At least that's not 
the definition I learned 30 years ago.  In many ways, sysplex is the z/OS 
implementation of High Availability.  Being a specialized implementation, it 
could do some nice magic with coupling facilities and so on.  It's also 
extremely expensive, as we've all come to expect from the industries pricing 
models for the mainframe.
</snip>

Wrong. Basic sysplex is the cost of 2 ESCON/FICON cables and the Channel 
Adapters.

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