Get Off the Bus Gus, 50 Ways to Leave Your Mainframe

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Get Off the Bus Gus, 50 Ways to Leave Your Mainframe Rohit Kelapure Pivotal Advisory Solutions Architect

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Summary • Before & After • Four Strategies • Mainframe Integration Patterns • z/OS Connect 2.0 • Replacing Batch Processing • Ofﬂoading Data

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Modernizing Off The Mainframe • Lift-and-Shift • Greenﬁeld Approach • Incremental Replacement • Application Tier Replacement 5

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Strangler Pattern 6

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Mainframe Integration Patterns 7

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IBM’s Answer

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IBM z/OS Connect 2.0 9

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Eclipse Tooling 10

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11 SOA & Legacy Integration

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Saving Money • Rationalize Redundant Technologies • Leverage latest features from zOS Transaction Managers • Compilers Matter, Version Of Java matters • Transaction Server Optimization • Externalize Business Rules • Ofﬂoad processing to zIIP & zAAP Processors 12

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Batch Modernization • Batch programs concurrently executed with online transactional programs • Ability to freely intermix technologies to enhance batch programs • Reduction or Elimination of needless data movement • Technical Solutions - I/O Acceleration Techniques … • Don’t use batch for app integration 13

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Spring Batch on PCF • JSR 352 Speciﬁcation on top of Spring Batch Implementation • Auto scale slave nodes in the cloud based on the amount of that the batch job processes • SCDF PartitionHandlers execute slave partitions as Tasks on PCF • v3 CAPI that exposes Diego Task API is experimental • cf cli Plugin for v3 apps lacks ability to delete apps bound to services • v3 apps do not show up in the AppsManager UI 14

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Apache Geode - Ofﬂoading Mainframe data

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More Apace Geode 16

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Spring Cloud Data Flow Geode 17

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Stream/Task Spring Boot Apps 18

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Ofﬂoading Mainframe Data into Hadoop 19

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Thank You Rohit Kelapure rkelapure@pivotal.io https://twitter.com/rkela https://www.linkedin.com/in/rohitkelapure http://cloud.rohitkelapure.com/