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Etymology

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Blend of systems +‎ complex

Noun

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sysplex (plural sysplexes)

  1. (computing) A group of connected IBM mainframe systems that share resources.
    • 2010, Mike Ebbers, Dino Tonelli, Jason Arnold, Co-locating Transactional and Data Warehouse Workloads on System z, page 245:
      When an enclave spans a system boundary in a sysplex, it is called a multisystem enclave.