"Today's new breed of smaller, cheaper mainframes, paired with
the Linux operating system, look like an attractive alternative to
Unix on RISC or SPARC servers. Linux on the mainframe seems to give
us the best of all worlds: the dependability and resilience of over
40 years of hardware innovation and a flexible, reliable open
source operating system. The big question: When should companies
choose Linux mainframes over Unix?
"This article compares the features and performance of Linux on
the mainframe--in this case, the IBM System z Server--and compares
it with Unix, in terms of its availability, features and
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