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by Christian Zass, Iain Neville, Masaya Nakagawa, Marek Liedel, George Handera, Hua
Implementing and Managing InfiniBand Coupling Links on IBM System z
Front cover
Notices
Trademarks
Preface
Authors
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Summary of changes
January 2014, Fourth Edition
March 2012, Third Edition
Chapter 1. Introduction to InfiniBand on System z
1.1 Objective of this book
1.2 InfiniBand architecture
1.2.1 Physical layer
1.3 IBM System z InfiniBand implementation
1.3.1 Host channel adapters
1.3.2 Processor-specific implementations
1.4 InfiniBand benefits
1.5 The importance of an efficient coupling infrastructure
1.5.1 Coupling link performance factors
1.5.2 PSIFB 12X and 1X InfiniBand links
1.6 Terminology
1.7 Structure of this book
Chapter 2. InfiniBand technical description
2.1 InfiniBand connectivity
2.2 InfiniBand fanouts
2.2.1 Adapter types
2.3 Fanout plugging
2.3.1 Fanout plugging rules for zEnterprise 196
2.3.2 Fanout plugging rules for zEnterprise 114
2.3.3 Fanout plugging rules for System z10 EC
2.3.4 Fanout plugging rules for System z10 BC
2.4 Adapter ID assignment and VCHIDs
2.4.1 Adapter ID assignment
2.4.2 VCHID - Virtual Channel Identifier
2.5 InfiniBand coupling links
2.5.1 12X PSIFB coupling links on System z9
2.5.2 12X PSIFB coupling links on System z10
2.5.3 PSIFB Long Reach coupling links on System z10
2.5.4 12X PSIFB coupling links on z196 and z114
2.5.5 Long Reach PSIFB coupling links on zEnterprise 196 and 114
2.5.6 PSIFB coupling links and Server Time Protocol
2.6 InfiniBand cables
Chapter 3. Preinstallation planning
3.1 Planning considerations
3.2 CPC topology
3.2.1 Coexistence
3.2.2 Supported coupling link types
3.3 Hardware and software prerequisites
3.3.1 Hardware prerequisites
3.3.2 Software prerequisites
3.4 Considerations for Server Time Protocol
3.4.1 Considerations for STP with PSIFB coupling links
3.5 Multisite sysplex considerations
3.6 Planning for future nondisruptive growth
3.7 Physical and logical coupling link capacity planning
3.7.1 Availability
3.7.2 Connectivity
3.7.3 Capacity and performance
3.8 Physical Coupling link addressing
3.9 Cabling considerations
Chapter 4. Migration planning
4.1 Migration considerations
4.1.1 Connectivity considerations
4.2 Introduction to the scenario notation
4.3 Scenario 1
4.4 Scenario 2
4.5 Scenario 3
4.6 Scenario 4
4.7 Scenario 5
4.8 Concurrent switch between IFB modes
Chapter 5. Performance considerations
5.1 Introduction to performance considerations
5.2 Our measurements
5.3 Our configuration
5.4 Testing background
5.4.1 z/OS LPAR configurations
5.4.2 CF configurations
5.4.3 Workloads used for our measurements
5.4.4 Run-time test composition
5.4.5 Measurement summaries
5.5 Simplex performance measurements results
5.5.1 Measurements on z10
5.5.2 Measurements on z196
5.6 ISC and PSIFB 1X performance measurements results
5.7 SM Duplex performance measurements results
5.8 Summary
Chapter 6. Configuration management
6.1 Configuration overview
6.2 PSIFB link support
6.2.1 PSIFB connectivity options
6.3 Sample configuration with PSIFB links
6.4 Defining your configuration to the software and hardware
6.4.1 Input/output configuration program support for PSIFB links
6.4.2 Defining PSIFB links using HCD
6.4.3 Defining timing-only PSIFB links
6.4.4 IOCP sample statements for PSIFB links
6.4.5 Using I/O configuration data to document your coupling connections
6.5 Determining which CHPIDs are using a port
6.6 Cabling documentation considerations
6.7 Dynamic reconfiguration considerations
6.8 CHPID Mapping Tool support
Chapter 7. Operations
7.1 Managing your InfiniBand infrastructure
7.2 z/OS commands for PSIFB links
7.2.1 z/OS CF-related commands
7.3 Coupling Facility commands
7.4 Hardware Management Console and Support Element tasks
7.4.1 Display Adapter IDs
7.4.2 Determining the CHPIDs that are associated with an AID/port
7.4.3 Toggling a CHPID on or offline using HMC
7.4.4 Displaying the status of a CIB link (CPC view)
7.4.5 Display the status of a logical CIB link (Image view)
7.4.6 View Port Parameters panel
7.4.7 Useful information from the Channel Problem Determination display
7.4.8 System Activity Display
7.5 PSIFB Channel problem determination
7.5.1 Checking that the link is physically working
7.5.2 Verifying that the physical connections match the IOCDS definitions
7.5.3 Setting a coupling link online
7.6 Environmental Record Editing and Printing
Appendix A. Resource Measurement Facility
Resource Measurement Facility overview
Appendix B. Processor driver levels
Driver level cross-reference
Appendix C. Link buffers and subchannels
Capacity planning for coupling links overview
Appendix D. Client experience
Overview of the client experience
Large production sysplex
Exploiting InfiniBand for link consolidation
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Note: Before using this information and the product it supports, read the information in “Notices” on page vii.
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