I agree with Robert's objections to zCX, and, frankly, If all a site wants to do is run zLinux applications on an IBM z system, it is much simpler (and perhaps cheaper) to just install z/VM on the box and then host as many Linux guests as you want. No extra external tooling is needed; just use out of the box management apps that are already available. Plus, the system programmers have much greater and finer, control over the hardware resources (memory, CPU, etc.) each zLinux guest is allowed to consume. And of course, z/VM and zLinux run very well on the full speed IFL engines, no other specialty engines required. Connect the z/VM and z/OS LPARs together by hyper-sockets and you're good to go. If I was an z/OS shop looking towards Linux, that's how I would proceed. Thought and comments always welcome. DJ
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