Pré-Anúncio z/OS 2.4 por Alvaro Salla (MAFFEI)

Mais um release do z/OS vem ao lume, agora o aguardado V2.R4.... Saia na frente assistindo esta supimpa palestra, e por aprender os seus conceitos e antecipadamente receba em troca a admiração ( e inveja) de seus pares quando de volta a sua baia, no caso já ocupada (modernamente) por um outro par. . Polvilhado do futuro (copiado do passado) como: , Microservices, Data Mining, Docker, Container, Devops, Microservices, aluguel de APls, JSON data streams (what a hell!!!), que teremos que deglutir goela abaixo. Por outro lado, haverá melhoras em itens mais concretos e inteligíveis como: . Uso dos novos algoritmos de crypto no CPACF para symmetric cipher and MAC. . Melhora no logging throughput devido ao IBM HyperWrite data replication support . . Agora RMF™ reports apresentam melhores informações de desempenho sobre IBM zHyperLink, que espero já tenha gente ativando (e comprando). . z/OSMF provendo mais availability e flexibility principalmente para suas funções de Sysplex. . DFSORT finalmente vai explorer System zHigh Performance FICON® (zHPF) abandonando o velho BSAM. . Kick Off definitivo do Container Pricing.... hurraahhh. . Diminuiçao no número de exits em Assembler. . More Data Analytics Applications. . Pervasive Encryption para datasets PDSE e JES2 Spool. . Melhoras no RACF, como se isso ainda fosse possível...... Hehehehehehe . Em inglês: "z/OS platform software installation improvements". . Melhoras no WA. . E muito mais..... Vai ser bom estarmos juntos novamente, principalmente porque não sabemos por quanto....

1. Pré-anúncio z/OS 2.4 Alvaro Salla

2. 2 Z14 GA2 and z/OS 2.4 (Sept/2019)

3. Resilience At z/OS 2.4 announcemnt the word resilience is used many times...Then, we need a clear definition in portuguese: Resiliência: Da Física - propriedade que alguns corpos apresentam de retornar à forma original após terem sido submetidos a uma deformação elástica. Figurado - figuradamente capacidade de se recobrar facilmente ou se adaptar à má sorte ou às mudanças. Formação de Profissionais em MAINFRAME 3

4. Look a that... Business success will be predicated on embracing agility, optimization, and resiliency: Agility in the adoption of new technologies in DevOps, microservices , and consumption models that are delivered as a service to accelerate their time to value Optimization through the ability to run computing workloads in the most efficient environment Resiliency to deliver continuity of business services through exploitation of functions such as encryption and high availability Formação de Profissionais em MAINFRAME 4

5. Buzzwords Cemetery OO, ITIL, SOA, ERP, SAP, Top Down, eBusiness Thin Client (I loved it) Formação de Profissionais em MAINFRAME 5

6. Buzzwords Be born: Cloud, Analytics, Big Data, Agile, Docker, Container, DevOps, Microservices, renting APIs, JSON data streams (what a hell !!!), IOT, Unbutu, Hadoop, Blockchain Formação de Profissionais em MAINFRAME 6

7. z/OS V2.4 is planning to introduce an exciting new capability, IBM z/OS Container Extensions, to help users execute Linux® on IBM Z Docker container in z/OS, alongside existing z/OS applications and data. This is intended to extend the strategic software stack on z/OS. z/OS Container Extensions are planned to enable application developers to develop and data centers to operate popular open source packages, Linux applications, IBM software, and third-party software together with z/OS applications and data-leveraging industry standard skills. Clients will be able to optimize developing and running their applications in their most efficient environment with faster time to value as business demands grow. Formação de Profissionais em MAINFRAME 7

8. 25 GbE for OSA and RoCE OSA-Express7S 25 GbE 6S is 10 GbE ) providing OSD CHPID (QDIO mode) support as a single 25 GbE port per feature. With this next generation of OSA-Express and when your z/OS Communications Server interface is configured in QDIO mode, all existing OSA (OSD) features are preserved, but now provided with a much higher bandwidth for your business critical TCP/IP workloads. (availability in April, 2019.) 25 GbE RoCE Express2 is a performance enhancement to the 10GbE RoCE Express2 is provided for increasing the bandwidth of your RoCE -related workloads. Formação de Profissionais em MAINFRAME 8

9. QDIO Concepts É uma maneira diferente de se fazer I/O (diferente de SSCH and IO interrupts) na arquitetura z. QDIO é um mecanismo altamente eficiente de transferência de dados. Reduz dramaticamente o overhead do sistema, devido ao uso da fila de memória e sinalizando um protocolo para trocar dados diretamente entre o microprocessador da placa OSA-Express e HiperSockets para IP através do software de TCP/IP. Em modo de QDIO, o microprocessador OSA-Express comunica-se diretamente com o programa do servidor de comunicação, usando filas de dados em memória principal e utilizando Direct Memory Access (DMA). Formação de Profissionais em MAINFRAME 9

10. Comparing QDIO with SSCH Formação de Profissionais em MAINFRAME 10

11. Crypto Express 6S Enhancements Not pervasive Crypto initiative z14 cryptographic capabilities continue to address the evolving security compliance requirements across the globe for stronger encryption and safer application and data management. The Crypto Express6S is designed to meet the Federal Information Processing Standard (FIPS) 140-2 at Level 4 for cryptographic modules. IBM's Common Cryptographic Architecture (CCA) release 6.0 is certified to meet the HSM requirements from the Payment Card Industry Security Standards Council (PCI-SSC), with a unique design that can help ease migration of applications and keys. Formação de Profissionais em MAINFRAME 11

12. CF Dynamic IO configuration (I) Stand-alone CFs, which are, by definition, CF images that reside on a CEC without a co- resident z/OS image, are now able to participate in dynamic I/O configuration changes that affect the stand-alone CF CEC, and no longer require a z/OS LP to be restarted in order to make such changes. Also, in the past, a restart would may e caused disruption for the Parallel Sysplex , that is, using the stand-alone CF, as the CF structures contents had to be relocated to other CF images . Formação de Profissionais em MAINFRAME 12

13. CF Dynamic IO configuration (II) Now, stand-alone CF image can seamlessly make hardware-only dynamic I/O configuration changes on behalf of the CF partitions that reside there without requiring a disruptive reset. This capability both improves client workload availability. It requires z that an IML or POR action be performed on the stand-alone CF after the z14 GA2 CFCC is present in order to enable subsequent use of this support. Formação de Profissionais em MAINFRAME 13

14. Enhancements on HMC Enhanced support for temporary processors via eBusiness on Demand (eBoD) Manage system time -- split and merge CTN Dynamic I/O for stand-alone Coupling Facility Manage PCI system services enhancements Enhancement of SE logins from the HMC YouTube videos for HMC content HMC Mobile enhancements Formação de Profissionais em MAINFRAME 14

15. Asynchronous Cache Cross-Invalidation (XI) It is a new sysplex capability for performance, scalability, and improved cross-site operation. When a DB2 page is updated, the BP coherency XI bit (located at HSA) must be made ON (by CFCC) in all other DB2 buffers containing a non current copy of the updated page. Now at z14 HA2, this XI invalidation is made in asynchronous mode. However, DB2 must provide support to sync up with the asynchronous XI at critical points such as at transaction commit. This protocol is expected to reduce the BP update service times and CF overhead, particularly in Sysplex environments that involve multiple sites with significant cross-site distances involved. The asynchronous XI protocol avoids some of the distance latencies along data updates. This enhancement requires PTFs for z/OS and Db2. Formação de Profissionais em MAINFRAME 15

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17. Asynchronous CF Lock Duplexing It is a not so new enhancement to Sysplex technology that was made generally available in October 2016. It is an alternative to the synchronous system managed duplexing of coupling facility (CF) lock structures that has been available for many years. The Asynchronous CF Lock Duplexing feature was designed to be a viable alternative to synchronous system managed duplexing. The goal was to provide the benefits of lock duplexing without the high performance penalty. It eliminates the synchronous mirroring between the CFs to keep the primary and secondary structures in sync. And please be sure that the IRLM locks integrity is guaranteed. Formação de Profissionais em MAINFRAME 17

18. IBM Open Data Analytics for z/OS IBM Open Data Analytics for z/OS is planned to provide enhancements to simplify data analysis by combining open source runtimes and libraries with analysis of z/OS data (such as SMF) at its source, to reduce data movement and increase the value of insights gained from leveraging current data. Recall the SIMD instruction set of the z14. Formação de Profissionais em MAINFRAME 18

19. Can a public Cloud be secure? IBM say yes, with the Mainframe BTW, Pubic Cloud is a mix of: Outsourcing plus Virtualization plus Thin Client plus SMS (data as a service) Formação de Profissionais em MAINFRAME 19

20. STP CTN split STP CTN split and merge is a new sysplex timing capability for availability that allows two distinct timing networks to be merged into one, or allows you to split one timing network into two, nondisruptively . Previously, these timing network reconfigurations and transitions were disruptive to the running sysplex ( es ) operating within the CTN(s). This feature is especially helpful when working to combine or redistribute servers within a corporate structure. Formação de Profissionais em MAINFRAME 20

21. Docker on IBM z It provides an environment allowing application developers to rapidly develop new single-purpose services or micro-services, which are usually combined to form larger applications. It also provides operations staff with a flexible and secure way to deploy these new services, over various physical and virtual hosts, allowing for high availability and capacity scaling. Problems: Problem Determination and application updates performance, documentação Formação de Profissionais em MAINFRAME 21

22. Assembler exits remediation A z/OS exit routine is like a very complex PARMLIB keyword, with a IF-THEN-ELSE logic. JES2 is planned to be enhanced with a new infrastructure designed to allow customization of JES2 with less of a requirement to code assembler exits. The new planned approach will allow the specification of policies that take actions at various points in processing based on conditions being met. These policies are intended to be release-independent, which is planned to simplify upgrade to new releases. This release plans to introduce the infrastructure for policies with support for basic conditions and actions. Formação de Profissionais em MAINFRAME 22

23. More on Pervasive Encryption z/OS V2.4 plans to continue to drive pervasive encryption efforts within an enterprise with support for additional z/OS data set types, including PDSE, and to provide JES2 encryption of JES managed data sets on SPOOL. These planned enhancements are intended to give users the ability to encrypt data without application changes and simplify the task of compliance. Formação de Profissionais em MAINFRAME 23

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