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Line 1: In computing, a '''Parallel [[Sysplex]]''' is a [[computer cluster\|cluster]] of [[IBM mainframe]]s acting together in a single system image, usually with [[z/OS]]. A Parallel Sysplex combines data sharing (same disk under control of sharing structures in a Coupling Facility) and [[parallel computing]] to allow a cluster of up to 32 computers to share a workload for [[high performance computing\|high performance]] and [[high availability]]. Parallel Sysplex provides [[horizontal scaling]]. The forerunner to Parallel Sysplex was '''Virtual Coupling''', a technique which allowed up to 12 [[IBM 390]] systems to execute jobs in parallel. The true Parallel Sysplex was introduced with then-new mainframe models in April [[1994]]<ref>http://www.redbooks.ibm.com/redbooks/pdfs/sg244356.pdf System/390 Parallel Sysplex Performance - IBM Redbook. Retrieved 17-09-2007.</ref>. IBM continues to improve and enhance Parallel Sysplex. Major components of a Parallel Sysplex include:

IBM Parallel Sysplex: Difference between revisions