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Comment by rbanffy

11 hours ago

Maybe, but then you need to engineer the 99.99999% uptime yourself.

If it were actually cheaper, IBM wouldn’t be selling these machines so well.

They are mostly selling to the captive audience who is 40 years deep into COBOL and can't pull out until it falls on top of them.

  • Many of those machines are running Java workloads, also COBOL isn't the only mainframe language, and the best thing in terms of security is that they don't use C as systems language, rather saner stuff with proper arrays, strings and bounds checking.

    That is why Unisys ClearPath MCP is still a thing, tracing back to its Burroughs 1961 heritage, security above all.

  • Well, you know what to do - just sell a system that runs COBOL on an x86 cluster or Kubernetes or whatever, and you'll make billions!

    Be sure to allocate me a bunch of shares for giving you the idea.

I don't think they are actually selling those machines so well. They have a captive legacy customer base, who else is buying those?

  • From TFA: "Overall, Z is growing very healthily. LinuxONE is the fastest area of growth for us right now."

    However, he didn't elaborate or give any examples. If I were the interviewer, I would have followed it with: "Oh?! Can you provide some examples for the readers who believe that you only sell to captive audiences?"