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zIIP processing for Java in IMS - Video 3

In our third video, we'll look at zIIP eligibility in more detail, specifically: Conditions for dispatch to zIIP Crossover to General CPU (GCP) Wait management (AWM) Be sure to view video 2 in…

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Java and IMS - Video 2

This second video in the Java and IMS series describes the components of the Java Virtual Machine and zIIP eligibility.

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Unit 12, Section 1: Migration Flows

This video describes the steps required to migrate to an IMS data sharing environment and provides references to useful documentation.

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Unit 11, Section 1: Batch Considerations

This video describes batch data sharing requirements, such as checkpoints and backout after abends, and contrasts batch (DLI or DBB) and BMP.

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Unit 10, Section 3: Reducing Lock Conflicts

This video provides guidance about how to reduce lock conflicts, such as setting the PROCOPT value and handling data affinity.

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Unit 10, Section 2: Database Design Issues and Potential Solutions

This video examines possible database design issues and problems that can occur with KSDS index updates, empty HIDAM databases, and extensions to HISAM databases.

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Unit 10, Section 1: Data Sharing Performance

This video describes performance issues related to the coupling facility, lock hash contentions, lock conflicts, and buffer invalidation.

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Unit 9, Section 3: Situation-Specific Problems

This video describes problems with DBRC, application lockouts, and database data sets.

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Unit 9, Section 2: RMF Reports, z/OS Trace, Sysplex Dumps, and Situational Problems

This video looks at more diagnostic tools that can help resolve problems in the coupling facility, IRLM, and IMSplex.

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Unit 9, Section 1: Monitoring, Lock Trace, and Logs Specific to Locking

This video covers some of the diagnostic tools and logs that are applicable to IMS data sharing and are contained in the base product set.

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Unit 8, Section 10: Database Recovery

This video describes how database recovery is different in a shared queues environment and how to recover shared databases.

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Unit 8, Section 9: IRLM SCOPE=GLOBAL or NODISCON

This video describes the implications of setting IRLM SCOPE=GLOBAL or NODISCON.

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Unit 8, Section 8: Messages Associated with Structure Failures

This video describes the various error messages associated with read, write, IRLM lock structures, coupling facility link failures to OSAM or VSAM structures, and other types of failures.

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Unit 8, Section 7: Coupling Facility Link Failures

CF-to-CF links are used by some sysplex data sharing services, such as structure duplexing, to synchronize updates. This video describes what happens when these links fail.

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Unit 8, Section 6: Coupling Facility Structure Failures: SVSO Structures

This video describes SVSO failures. Shared VSO DEDBs can reside in one or two duplicated structures, and these configurations have a marked effect on processing if a SVSO structure failure occurs.

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Unit 8, Section 5: Coupling Facility Structure Failures: OSAM and VSAM Structures

This video describes what happens when OSAM and VSAM structures fail in data sharing environment.

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