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Running Mainframe z on Distributed Platforms: How to Create Robust Cost-Efficient Multiplatform z Environments by Stephen Norris, Kenneth Barrett

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CHAPTER 5

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Constructing the z/VM Environment

While simple use cases can be satisfied with a single virtual system, more complicated use cases will require an environment consisting of multiple virtual systems. Here are several methods for providing multiple virtual systems, with their pros and cons:

  • Multiple Linux servers, each hosting a single virtual machine
    • An expensive solution
    • Sharing data between systems introduces complexity and has many points of failure
  • Multiple first-level virtual machines on the same Linux host
    • Limits the number of machines to the maximum number of processors authorized by the dongle
    • Less expensive than supporting ...

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