IMS in Parallel Sysplex . Volume 1 Reviewing the IMSplex technology / / Jouko Jantti et al

• Autore: Jantti Jouko
• Pubblicazione: San Jose, CA, : IBM International Technical Support Organization, 2003
• Edizione: 1st ed.
• Descrizione fisica: xiv, 268 p. : ill
• Disciplina: 004/.35
• Soggetto topico: IMS/VS (Computer system); Parallel computers; Parallel processing (Electronic computers); Database management
• Altri autori: MartinezJuan Jesus Inlesta KubeinKnut StillwellBill WicksGary
• Note generali: Bibliographic Level Mode of Issuance: Monograph
• Nota di bibliografia: Includes bibliographical references and indexes.
• Nota di contenuto: Front cover -- Contents -- Notices -- Trademarks -- Preface -- The team that wrote this redbook -- Become a published author -- Comments welcome -- Chapter 1. Introduction to the Parallel Sysplex -- 1.1 Introduction -- 1.2 What is a Parallel Sysplex? -- 1.2.1 Some components and terminology of a Parallel Sysplex -- 1.2.2 OS/390 component and subsystem software -- 1.3 Sysplex services -- 1.4 Sysplex services for communications (XCF) -- 1.4.1 XCF groups -- 1.4.2 XCF group services -- 1.4.3 XCF signaling services -- 1.4.4 XCF monitoring services -- 1.5 Sysplex services for recovery (ARM) -- 1.6 Sysplex services for data sharing (XES) -- 1.6.1 Structures, connectors, and services -- 1.6.2 Connectors and connection services -- 1.6.3 Cache structures and cache services -- 1.6.4 Lock structures and lock services -- 1.6.5 List structures and list services -- 1.7 Other connection services -- 1.8 Objective of Parallel Sysplex development -- 1.8.1 Benefits of a Parallel Sysplex configuration -- 1.8.2 Why move your IMS environment to a Parallel Sysplex? -- Chapter 2. Introducing IMS data sharing -- 2.1 Data sharing overview -- 2.2 Current IMS N-way data sharing components -- 2.2.1 IMS data sharing subsystems -- 2.2.2 Coupling Facility -- 2.2.3 Sysplex services for data sharing -- 2.2.4 IMS block level data sharing use of Coupling Facility structures -- 2.2.5 IMS Database Recovery Control (DBRC) -- 2.2.6 The DBRC RECON data set -- 2.2.7 Internal Resource Lock Manager -- 2.3 IMS features associated with block level data sharing -- 2.3.1 IMS Version 6 features related to block level data sharing -- 2.3.2 IMS Version 7 features related to block level data sharing -- 2.3.3 IMS Version 8 features related to block level data sharing -- Chapter 3. Data sharing integrity components -- 3.1 Data sharing integrity -- 3.2 Database authorization. ; 3.2.1 When authorization occurs -- 3.2.2 Access intent -- 3.3 Database Recovery Control and the RECON -- 3.4 Lock management -- 3.4.1 Lock properties -- 3.5 Full function locking overview -- 3.5.1 Database record locks -- 3.5.2 Block locks -- 3.5.3 Busy locks -- 3.5.4 Extend locks -- 3.5.5 Data set reference locks -- 3.5.6 Command locks -- 3.6 Fast Path DEDB locking overview -- 3.6.1 Control interval locks -- 3.6.2 Unit of work locks -- 3.6.3 AREA locks -- 3.6.4 AREA notify locks -- 3.6.5 Fast Path command lock -- 3.6.6 Fast Path buffer overflow locks -- 3.6.7 Summary of Fast Path locking -- 3.7 Specific use of locks and their effect in data sharing -- 3.8 IRLM Version 2 Release 1 -- 3.8.1 Deadlock control -- 3.8.2 Storing lock information -- 3.8.3 The lock structure in the Coupling Facility -- 3.8.4 Following a lock request -- 3.9 The buffer invalidation process -- 3.9.1 OSAM and VSAM buffer invalidation using XES services -- 3.9.2 Buffer invalidation and Fast Path DEDBs -- 3.10 The IMS interface to the notification process -- 3.10.1 Global database commands -- 3.10.2 Database write errors -- 3.10.3 Data set extensions -- 3.10.4 The Coupling Facility and notifications -- 3.11 Components involved in preserving database integrity -- Chapter 4. Additional data sharing facilities -- 4.1 OSAM Coupling Facility data caching -- 4.1.1 Why use OSAM CF data caching -- 4.1.2 Requirements for OSAM CF data caching -- 4.1.3 The store-through cache structure -- 4.1.4 Requesting data caching -- 4.1.5 An OSAM cache modification example -- 4.1.6 General guidelines to improve performance with OSAM DB CF caching -- 4.2 Fast Path DEDB VSO sharing -- 4.2.1 Components of the VSO data sharing solution -- 4.2.2 VSO store-in cache structure and host elements interface -- 4.2.3 IMS Version 8 additional Coupling Facility support for SVSO. ; 4.3 Sharing Fast Path DEDB sequential dependent segments -- 4.3.1 The shared SDEP enhancement -- 4.4 Fast Database Recovery (FDBR) -- 4.4.1 Environments where FDBR is supported -- Chapter 5. IMS shared queues -- 5.1 Shared queues overview -- 5.1.1 Description of facility and use of Parallel Sysplex -- 5.2 Shared queue components -- 5.3 Common Queue Server (CQS) -- 5.3.1 Base Primitive Environment -- 5.3.2 Components of a list structure -- 5.3.3 List headers -- 5.3.4 List entries -- 5.3.5 Unit of work ID -- 5.3.6 Lock table -- 5.3.7 Event monitor controls -- 5.3.8 CQS queue types -- 5.3.9 Private queue types -- 5.3.10 Full function queue types -- 5.3.11 Fast Path queue types -- 5.3.12 Queue names -- 5.3.13 IMS queue manager -- 5.4 Register interest -- 5.4.1 Registering interest in PSBs for Fast Path -- 5.4.2 Registering interest in terminals -- 5.5 Significant status -- 5.6 Accessing shared queues -- 5.6.1 Message queue overflow structure -- 5.6.2 Overflow processing -- 5.6.3 Processing without an overflow structure -- 5.6.4 Full structure -- 5.6.5 CQS checkpoint data sets -- 5.6.6 CQS structure recovery data sets -- 5.6.7 Structure integrity -- 5.6.8 CQS security -- 5.6.9 OS/390 System Logger -- 5.6.10 OS/390 logging structure -- 5.6.11 System Logger data space -- 5.6.12 OS/390 staging log data set -- 5.6.13 Log data sets -- Chapter 6. Transaction flow in a shared queues environment -- 6.1 Processing a full function transaction -- 6.1.1 Local processing -- 6.1.2 Global processing -- 6.1.3 Scheduling for full function transaction -- 6.1.4 Full function transaction flow -- 6.2 Processing a Fast Path transaction -- 6.2.1 Local only -- 6.2.2 Local first -- 6.2.3 Global only -- 6.2.4 Fast Path transaction flow -- Chapter 7. Common Service Layer (CSL) components -- 7.1 IMS architecture overview -- 7.1.1 Architecture in IMS Version 6 and Version 7. ; 7.1.2 Architecture in IMS Version 8 -- 7.2 Common Service Layer (CSL) architecture -- 7.2.1 CSL address spaces -- 7.2.2 CSL servers and clients -- 7.2.3 CSL configuration -- 7.2.4 IMSplex configuration -- 7.2.5 IMSplex environmental factors -- 7.2.6 IMS Version 8 in a sysplex -- 7.3 Base Primitive Environment (BPE) -- 7.4 Structured Call Interface (SCI) -- 7.4.1 SCI components -- 7.4.2 SCI user exit routines -- 7.4.3 SCI IMSplex member exit routines -- 7.5 Operations Manager (OM) -- 7.5.1 IMSplex components related to OM -- 7.5.2 OM infrastructure -- 7.5.3 OM services -- 7.5.4 OM command entry routing and response consolidation -- 7.5.5 OM command security -- 7.5.6 OM APIs -- 7.5.7 OM clients -- 7.5.8 Command processing (CP) clients -- 7.5.9 AO clients -- 7.5.10 Commands from the OM API -- 7.5.11 IMSplex commands -- 7.5.12 Classic IMS commands -- 7.5.13 IMS asynchronous command response -- 7.5.14 Presence of resource structure -- 7.5.15 Commands indifferent to IMSplex -- 7.5.16 OM user exit routines -- 7.6 Resource Manager (RM) -- 7.6.1 IMSplex components related to RM -- 7.6.2 Resource management functions -- 7.6.3 Resource management infrastructure -- 7.6.4 RM clients and their roles -- 7.6.5 Resource structure -- 7.6.6 Resource Manager (RM) address space -- 7.6.7 RM user exit routines -- 7.6.8 Common Queue Server (CQS) -- 7.6.9 CQS requirements -- 7.6.10 CQS components -- 7.6.11 Supporting multiple clients -- Chapter 8. Sysplex terminal management (STM) -- 8.1 STM objectives -- 8.2 STM environment -- 8.2.1 STM configurations -- 8.3 IMSplex resources -- 8.3.1 Statically defined VTAM resources (not parallel-session ISC) -- 8.3.2 Dynamic (ETO) resources -- 8.3.3 Single session ISC resources -- 8.3.4 Parallel session ISC resources -- 8.3.5 MSC logical links (MSNAMEs) -- 8.3.6 Static transactions -- 8.3.7 APPC CPI-C driven transactions. ; 8.3.8 APPC output descriptors -- 8.3.9 Message destinations -- 8.3.10 Summary of IMS resources managed by STM -- 8.4 STM terms and concepts -- 8.4.1 Resource type consistency -- 8.4.2 Resource name uniqueness -- 8.5 Resource status -- 8.5.1 Command status -- 8.5.2 End-user status -- 8.5.3 Recoverable status -- 8.5.4 Non-recoverable status -- 8.6 Significant status -- 8.6.1 Command significant status -- 8.6.2 End-user significant status -- 8.7 Resource status recovery -- 8.7.1 Significant status -- 8.7.2 Status recovery mode (SRM) -- 8.7.3 Status recoverability (RCVYxxxx) -- 8.8 Status recovery examples -- 8.8.1 Status recovery (SRM=GLOBAL) -- 8.8.2 Status recovery (SRM=LOCAL) -- 8.8.3 Status recovery (SRM=NONE) -- 8.9 Ownership and affinities -- 8.9.1 Resource ownership and RM affinity -- 8.10 Resources and the resource structure -- 8.10.1 Resource structure components and characteristics -- 8.11 Resource entries in the resource structure -- 8.11.1 IMSplex entries -- 8.11.2 Sysplex terminal entries -- Chapter 9. Other functions utilizing CSL -- 9.1 Online change -- 9.1.1 Changing resources by online change -- 9.1.2 Review of local online change -- 9.1.3 Overview of global online change -- 9.1.4 Components -- 9.1.5 OLCSTAT data set -- 9.2 Single point of control (SPOC) -- 9.2.1 CSL components -- 9.2.2 Command behaviors -- 9.3 TSO SPOC application -- 9.3.1 SPOC registers with local SCI -- 9.3.2 IMS provided TSO/ISPF single point of control (SPOC) -- 9.3.3 TSO SPOC functions to an IMSplex -- 9.3.4 DFSSPOC inputs and outputs -- 9.4 Operations Manager programming interface -- 9.4.1 AOP starting steps -- 9.5 Automatic RECON loss notification (ARLN) -- 9.5.1 Process notification -- 9.5.2 Redefining the RECON discarded -- 9.6 Language Environment (LE) -- 9.6.1 New run time LE services -- Chapter 10. Introduction to IMSplex connectivity. ; 10.1 IMS connections.
• Sommario/riassunto: This IBM Redbooks publication is the first volume of a series of redbooks called IMS in the Parallel Sysplex. These redbooks describe how IMS exploits the Parallel Sysplex functions and how to plan for, implement, and operate IMS systems working together in a Parallel Sysplex. Volume 1 provides an overview of the Parallel Sysplex and the services offered to authorized programs such as IMS. It then continues with the description of the functionality that IMS provides in a Parallel Sysplex environment. Each function supported by IMS is presented in one or more chapters. The topics include: - Introduction to the Parallel Sysplex - Block level data sharing - Connectivity and workload balancing - Shared queues - Common Service Layer The other volumes in this series are: IMS in the Parallel Sysplex, Volume II: Planning the IMSplex, SG24-6928 IMS in the Parallel Sysplex, Volume III: IMSplex Implementation and Operations, SG24-6929
• Titolo autorizzato: IMS in Parallel Sysplex
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910815969203321
• Lo trovi qui: Univ. Federico II
• Serie: IBM redbooks.