Introduction to the New Mainframe: Large-Scale Commercial Computing

Table of contents

1. Preface
   1. How this text is organized
   2. How each chapter is organized
   3. About the authors
   4. Acknowledgements
   5. Reviewers
2. Chapter 1: The new mainframe
   1. What is a mainframe?
   2. An evolving architecture
   3. Mainframes in our midst
   4. Who uses mainframe computers?
   5. Factors contributing to mainframe use
      1. Capacity
      2. Scalability
      3. Integrity and security
      4. Availability
      5. Access to large amounts of data
      6. Systems management
      7. Autonomic capabilities
   6. Typical mainframe workloads
      1. Batch processing
      2. Online transaction processing
   7. Summary
   8. Questions for review
   9. Topics for further discussion
3. Chapter 2: Capacity
   1. Introduction
   2. What do we mean by capacity?
   3. Elements of a system required for capacity
   4. A few servers versus many servers
      1. Many servers
      2. Few servers - the IBM System z approach
   5. Mixed workloads
   6. Service level agreement
   7. Managing the system to the SLA
      1. Managing CPU
      2. Managing disk
      3. Storage concepts: the address space
      4. Real storage management
   8. Architecture, running work, and capacity
   9. Several servers on one physical machine
      1. The LPAR
      2. Planning for downtime
   10. Parallel Sysplex
   11. Measurements
   12. Summary
   13. Questions for review
   14. Topics for further discussion
4. Chapter 3: Scalability
   1. Introduction to scalability
   2. Scalability concepts
      1. Scalability approaches
      2. Scalability influences
      3. Provisioning
   3. Scalability implementation on IBM System z
      1. Hardware scalability
      2. Operating system scalability
      3. Parallel Sysplex (1/2)
      4. Parallel Sysplex (2/2)
      5. Provisioning
      6. Capacity on Demand
      7. Workload Manager (WLM) (1/2)
      8. Workload Manager (WLM) (2/2)
   4. Summary
   5. Questions for review
5. Chapter 4: Integrity and security
   1. Introduction to integrity
   2. Integrity
      1. Serialization
      2. Data Facility Storage Management Subsystem (DFSMS)
      3. Auditing
      4. Resource Recovery Services (RRS)
      5. Data backup and recovery
      6. Performance
   3. Security
      1. Introduction
      2. U.S. Government certification
      3. Enforced isolation
      4. The accessor environment element
      5. Authorized program facility (APF)
      6. Program states
      7. Storage protection keys
      8. Supervisor call
      9. System Authorization Facility
   4. Summary
   5. Questions for review
6. Chapter 5: Availability
   1. Introduction to availability
   2. What is availability?
      1. Outages - planned and unplanned
   3. Inhibitors to availability
   4. Redundancy
      1. Concurrent maintenance and upgrades
      2. Accessing peripheral devices
      3. Continuous availability of mainframes using clustering
   5. z/OS elements for availability
      1. z/OS components
      2. Error recording
      3. Recovery
   6. Disaster recovery (DR)
   7. Summary
   8. Questions for review
7. Chapter 6: Accessing large amounts of data
   1. Introduction
   2. Channel subsystem
   3. Control units
   4. DASD CKD architecture
   5. Mapping for access to devices
   6. DASD subsystem
   7. Redundant Array of Independent Disks (RAID)
   8. Reducing the number of logical volumes
   9. Multiple Allegiance/Parallel Access Volumes
   10. Random access to data
   11. Databases
   12. Data sharing
   13. Data Facility Storage Management System
   14. Data placement and management
   15. Summary
   16. Questions for review
   17. Topics for further discussion
8. Chapter 7: Systems management
   1. Introduction to systems management
   2. System data
   3. Configuration management
      1. System software configuration management
      2. Hardware configuration management
      3. Application configuration management
   4. Workload management
   5. Operations management
      1. Batch scheduling
      2. Console operations
   6. Network management
   7. Storage management
   8. Security management
   9. Performance management
      1. z/OS implementation
   10. Problem management
       1. Trend reporting
       2. Operator console
   11. Change management
   12. Summary
9. Chapter 8: Autonomic computing
   1. Introduction
      1. Autonomic computing principles
      2. Autonomic computing concepts (1/2)
      3. Autonomic computing concepts (2/2)
   2. z/OS implementation of autonomic computing
   3. Self-healing
   4. Self-configuring
   5. Self-protecting
   6. Self-optimizing
   7. Summary
10. Appendix A: Architecture summary
    1. Interrupt processing
    2. The program status word
       1. New and old PSWs
       2. Security
11. Appendix B: Glossary (1/8)
12. Appendix B: Glossary (2/8)
13. Appendix B: Glossary (3/8)
14. Appendix B: Glossary (4/8)
15. Appendix B: Glossary (5/8)
16. Appendix B: Glossary (6/8)
17. Appendix B: Glossary (7/8)
18. Appendix B: Glossary (8/8)
19. Notices
    1. Trademarks
20. Related publications
    1. IBM Redbooks
    2. IBM white papers
    3. Other publications
    4. Online resources
    5. How to get IBM Redbooks
    6. Help from IBM
21. Index (1/2)
22. Index (2/2)
23. Back cover