Intelligent resource director

Authors:
W. J. Rooney;J. P. Kubala;J. Maergner;P. B. Yocom
Affiliations:
IBM Server Group, Poughkeepsie, New York;IBM Server Group, Poughkeepsie, New York;IBM Deutschland Entwicklung GmbH, Boeblingen, Germany;IBM Server Group, Poughkeepsie, New York
Venue:
IBM Journal of Research and Development
Year:
2002

Citing 1
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Abstract

Intelligent Resource Director (IRD), a feature of the IBM eServer zSeries™ processors and the z/OS™ operating system, manages multiple heterogeneous workloads with various business priorities toward achieving their goals. It establishes a more synergistic relationship with the Workload Manager (WLM) component of z/OS and the zSeries hardware, and augments the adjustments that WLM makes to local sysplex members by managing the set of logical partitions on a particular central processing complex (CPC) that are part of the same sysplex, known as a logically partitioned (LPAR) cluster. This paper describes the three primary areas that IRD manages: LPAR CPU management, channel subsystem priority queueing (CSSPQ), and dynamic channel path management (DCM).