Tag Archives: SYSPLEX

Global Resource Serialization for zOS – To Serialize or Not To Serialize

Summary This Article summarizes concepts of GRS in IBM zOS mainframe systems explaining how data sharing is performed in a multi-system environment. It also illustrates design specifications of related products. Finally operational aspects for different topologies are described. Introduction As … Continue reading

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Dynamic Workload Management in IBM System z Mainframe Environment

Summary Workload manager (WLM) employed in IBM System z environment is one of most sophisticated performance monitoring and control tool in IT industry. In this article, first WLM concepts and facilities has been summarized. After going over evolution from machine … Continue reading

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zSecure Installation and Operation

zSecure is a suite of security products to improve management of System z security environment. zSecure Admin and zSecure Visual components are the ones I installed and reconfigured recently. zSecure Admin lets security administrator perform more productive and zSecure Visual … Continue reading

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Shortening z/OS Recycling Time

IBM System z server workloads are comprised of heterogeneous transaction types. DB2 queries, WAS (Websphere Application Server), Websphere MQ (Message Queueing oriented middleware), CICS TS, CTG (CICS Transaction Gateway), RDZ (Rational Developer for System z), IMS (Information Management System) transactions. … Continue reading

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