Linked by David Adams on Wed 7th Sep 2011 21:15 UTC, submitted by sjvn
Ubuntu, Kubuntu, Xubuntu Sources close to Canonical and IBM are telling me that Ubuntu may soon be certified on IBM's System p mini-computers and blades and System z mainframes.
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People who keep coming into these topics and talking about just cpu power seriously need to do some research.
Because in the enterprise sector raw cpu power doesn't mean nearly as much as i/o ability and redundancy. Most servers actually sit with the cpu idling while waiting for disk or network access. This is why virtualization is becoming so common.
Secondly, mainframe architecture is very different from small systems. In a small system the cpu handles darn near everything, so it needs to be high powered. In a mainframe, all i/o is relegated to specialized processors, and there are specialized processors for Java and database programs.
A mainframe is in fact a cluster, so tightly integrated that only the head sysadmin needs to know/care.

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