Common Questions About Linux on Mainframe Trends

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Summary

IBM has made steady progress in expanding the use of Linux on the mainframe to the point where about 15% of the total mainframe MIPS installed worldwide are Linux MIPS. The outlook for growth remains good, with a market penetration of 50% of the System z installed base by the end of 2012.

Table of Contents

  • Analysis
    • What percentage of IBM mainframe customers use the Integrated Facility for Linux to run Linux on System z?
    • How many IFLs does the typical mainframe customer have installed?
    • What percentage of mainframe customers that have IFLs are running IFL-only machines?
    • What growth rate do you anticipate in customers using Linux on System z, and will this rate of adoption continue, begin to plateau or decelerate?
    • What workloads are being successfully run on Linux on System z, and how has this changed over time?
    • Who typically manages the mainframe Linux environment — distributed-systems people or mainframe people?
    • Where do I go for a Linux distribution that runs on System z?
  • Recommended Reading
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