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by Sim Schindel, David Clitherow
GDPS Family: An Introduction to Concepts and Capabilities
Front cover
Notices
Trademarks
Preface
The team who wrote this book
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Summary of changes
October 2013, Update to Ninth Edition
March 2013, Ninth Edition
July 2012, Eighth Edition
June 2011, Seventh Edition
August 2010, Sixth Edition
September 2009, Fifth Edition
September 2008, Fourth Edition
March 2007, Third Edition
December 2005, Second Edition
Chapter 1. Introduction to business resilience and the role of GDPS
1.1 Objective
1.2 Layout of this document
1.3 IT resilience
1.3.1 Disaster recovery
1.3.2 The next level
1.3.3 Other considerations
1.4 Characteristics of an IT resilience solution
1.5 GDPS offerings
1.6 Automation and disk replication compatibility
1.7 Summary
Chapter 2. Infrastructure planning for availability and GDPS
2.1 Parallel Sysplex overview
2.1.1 Maximizing application availability
2.1.2 Multisite sysplex considerations
2.2 Data consistency
2.2.1 Dependent write logic
2.3 Synchronous versus asynchronous data transfer
2.4 Data replication technologies
2.4.1 PPRC (IBM Metro Mirror)
2.4.2 XRC (z/OS Global Mirror)
2.4.3 Global Mirror
2.4.4 Combining disk remote copy technologies for CA and DR
2.4.5 IBM software replication products
2.5 Tape resident data
2.6 FlashCopy
2.7 Automation
2.7.1 Recovery time objective
2.7.2 Operational consistency
2.7.3 Skills impact
2.7.4 Summary
2.8 Flexible server capacity
2.8.1 Capacity Backup Upgrade
2.8.2 On/Off Capacity on Demand
2.8.3 GDPS CBU and On/Off CoD handling
2.9 Cross-site connectivity considerations
2.9.1 Server-to-disk links
2.9.2 Data replication links
2.9.3 Coupling links
2.9.4 IBM 9037 Sysplex Timer
2.9.5 Server Time Protocol (STP)
2.9.6 XCF signalling
2.9.7 HMC and consoles
2.9.8 Connectivity options
2.9.9 Single points of failure
2.10 Testing considerations
2.11 Summary
Chapter 3. GDPS/PPRC
3.1 Introduction to GDPS/PPRC
3.1.1 Protecting data integrity and data availability with GDPS/PPRC
3.1.2 Protecting tape data
3.1.3 Protecting distributed (FBA) data
3.1.4 Protecting other CKD data
3.2 GDPS/PPRC configurations
3.2.1 Controlling system
3.2.2 Active/standby configuration
3.2.3 Active/active configuration
3.2.4 Business Recovery Services (BRS) configuration
3.2.5 GDPS/PPRC in a three-site configuration
3.2.6 GDPS/PPRC in a single site
3.2.7 Other considerations
3.3 GDPS/PPRC management of distributed systems and data
3.3.1 Multiplatform Resiliency for System z (also known as xDR)
3.3.2 Distributed Cluster Management
3.4 Managing the GDPS environment
3.4.1 NetView interface
3.4.2 GDPS scripts
3.4.3 System Management actions
3.5 GDPS/PPRC monitoring and alerting
3.5.1 GDPS/PPRC health checks
3.6 Other facilities related to GDPS
3.6.1 HyperSwap coexistence
3.6.2 Reduced impact initial copy and resynchronization
3.6.3 Reserve Storage Pool
3.6.4 Query Services
3.6.5 Concurrent Copy cleanup
3.7 GDPS/PPRC flexible testing and resync protection
3.7.1 Use of FlashCopy Space Efficient volumes
3.8 GDPS tools for GDPS/PPRC
3.9 GDPS/PPRC co-operation with GDPS/Active-Active
3.10 Services component
3.11 GDPS/PPRC prerequisites
3.12 Comparison of GDPS/PPRC versus other GDPS offerings
3.13 Summary
Chapter 4. GDPS/PPRC HyperSwap Manager
4.1 Introduction to GDPS/PPRC HM
4.1.1 Protecting data integrity and data availability with GDPS/PPRC HM
4.1.2 Protecting distributed (FBA) data
4.1.3 Protecting other CKD data
4.2 GDPS/PPRC HM configurations
4.2.1 Controlling system
4.2.2 GDPS/PPRC HM in a single site
4.2.3 GDPS/PPRC HM in a two-site configuration
4.2.4 GDPS/PPRC HM in a three-site configuration
4.2.5 Other considerations
4.3 Managing the GDPS environment
4.3.1 NetView interface
4.3.2 NetView commands
4.4 GDPS/PPRC HM monitoring and alerting
4.4.1 GDPS/PPRC HM health checks
4.5 Other facilities related to GDPS
4.5.1 HyperSwap coexistence
4.5.2 GDPS/PPRC HM reduced impact initial copy and resynchronization
4.5.3 Reserve Storage Pool
4.5.4 GDPS/PPRC HM Query Services
4.5.5 Concurrent Copy cleanup
4.6 GDPS/PPRC HM flexible testing and resync protection
4.6.1 Use of FlashCopy Space Efficient volumes
4.7 GDPS tools for GDPS/PPRC HM
4.8 Services component
4.9 GDPS/PPRC HM prerequisites
4.10 Comparison of GDPS/PPRC HM versus other GDPS offerings
4.11 Summary
Chapter 5. GDPS/XRC
5.1 Introduction to GDPS/XRC
5.1.1 Protecting data integrity
5.1.2 Protecting tape data
5.2 GDPS/XRC configuration
5.2.1 GDPS/XRC in a three-site configuration
5.3 GDPS/XRC management of distributed systems and data
5.4 Managing the GDPS environment
5.4.1 NetView interface
5.4.2 GDPS scripts
5.4.3 System Management actions
5.5 GDPS/XRC monitoring and alerting
5.5.1 GDPS/XRC health checks
5.6 Other facilities related to GDPS
5.6.1 FlashCopy disk definition in the GDPS systems
5.6.2 GDPS/XRC FlashCopy locking
5.6.3 GDPS/XRC Configuration checking
5.6.4 Vary-After-Clip automation
5.6.5 Query Services
5.7 Flexible testing
5.8 GDPS tools for GDPS/XRC
5.9 Services component
5.10 GDPS/XRC prerequisites
5.11 Comparison of GDPS/XRC versus other GDPS offerings
5.12 Summary
Chapter 6. GDPS/Global Mirror
6.1 Introduction to GDPS/Global Mirror
6.1.1 Protecting data integrity
6.2 GDPS/Global Mirror configuration
6.2.1 GDPS/GM in a three-site configuration
6.2.2 Other considerations
6.3 GDPS/GM management for distributed systems and data
6.4 Managing the GDPS environment
6.4.1 NetView panel interface
6.4.2 System Management actions
6.5 GDPS/GM monitoring and alerting
6.5.1 GDPS/GM health checks
6.6 Other facilities related to GDPS
6.6.1 GDPS/GM Copy Once facility
6.6.2 GDPS/GM Query Services
6.6.3 Global Mirror Monitor integration
6.7 Flexible testing
6.7.1 Usage of FlashCopy Space Efficient
6.8 GDPS tools for GDPS/GM
6.9 Services component
6.10 GDPS/GM prerequisites
6.11 Comparison of GDPS/GM versus other GDPS offerings
6.12 Summary
Chapter 7. GDPS/Active-Active
7.1 Overview of GDPS/Active-Active
7.1.1 Positioning GDPS/Active-Active
7.1.2 GDPS/Active-Active Sites concept
7.2 GDPS/Active-Active solution products
7.2.1 The GDPS/Active-Active product
7.2.2 Tivoli NetView for z/OS
7.2.3 IBM Tivoli Monitoring
7.2.4 System Automation for z/OS
7.2.5 IBM Multi-site Workload Lifeline for z/OS
7.2.6 Middleware
7.2.7 Replication software
7.2.8 Other optional components
7.3 GDPS/Active-Active environment
7.3.1 GDPS/Active-Active - a deeper dive
7.3.2 Considerations for other non-Active-Active workloads
7.4 GDPS/Active-Active functions and features
7.4.1 GDPS/Active-Active web interface
7.4.2 GDPS/Active-Active monitoring and alerting
7.4.3 GDPS/Active-Active scripts
7.4.4 GDPS/Active-Active Query Services
7.5 GDPS/Active-Active co-operation with GDPS/PPRC
7.6 GDPS/Active-Active disk replication integration
7.7 Flexible testing with GDPS/Active-Active
7.8 GDPS/Active-Active services
7.9 GDPS/Active-Active prerequisites
7.10 GDPS/Active-Active comparison to other GDPS offerings
7.11 GDPS/Active-Active summary
Chapter 8. GDPS extensions for heterogeneous systems and data
8.1 Open LUN Management function
8.2 GDPS/PPRC Multiplatform Resiliency for System z
8.2.1 Guest Linux under z/VM
8.2.2 Native Linux on System z
8.2.3 Customization Verification Program
8.2.4 xDR Extended Monitoring
8.3 Distributed Cluster Management
8.3.1 Distributed Cluster Management terminology
8.3.2 DCM support for VCS
8.3.3 DCM support for SA AppMan
8.3.4 Summary
Chapter 9. Combining Local/Metro continuous availability with out-of-region disaster recovery
9.1 Introduction
9.2 Design considerations
9.2.1 Three-copy solutions versus three-site solutions
9.2.2 Multitarget and cascading topologies
9.2.3 Cost considerations
9.3 GDPS Metro/Global Mirror solution
9.3.1 GDPS/MGM overview
9.3.2 GDPS/MGM Site1 failures
9.3.3 GDPS/MGM Site2 failures
9.3.4 GDPS/MGM region switch and return home
9.3.5 Scalability in a GDPS/MGM environment
9.3.6 Other considerations in a GDPS/MGM environment
9.3.7 Managing the GDPS/MGM environment
9.3.8 Flexible testing in a GDPS/MGM environment
9.3.9 GDPS Query Services in a GDPS/MGM environment
9.3.10 Prerequisites for GDPS/MGM
9.3.11 GDPS/Active-Active disk replication integration with GDPS/MGM
9.4 GDPS Metro z/OS Global Mirror solution
9.4.1 GDPS/MzGM overview
9.4.2 GDPS/MzGM Site1 failures
9.4.3 GDPS/MzGM Site2 failures
9.4.4 GDPS/MzGM region switch and return home
9.4.5 Management of the GDPS/MzGM environment
9.4.6 Flexible testing of the GDPS/MzGM environment
9.4.7 Prerequisites for GDPS/MzGM
Chapter 10. Sample continuous availability and disaster recovery scenarios
10.1 Introduction
10.2 Continuous availability in a single data center
10.3 DR across two data centers at metro distance
10.4 DR and CA across two data centers at metro distance
10.4.1 Active/active workload
10.5 DR in two data centers, global distance
10.6 Other configurations
Glossary
Related publications
IBM Redbooks publications
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Back cover
IBM System x Reference Architecture for Hadoop: IBM InfoSphere BigInsights Reference Architecture
Introduction
Business problem and business value
Reference architecture use
Requirements
InfoSphere BigInsights predefined configuration
InfoSphere BigInsights HBase predefined configuration
Deployment considerations
Customizing the predefined configurations
Predefined configuration bill of materials
References
The team who wrote this paper
Now you can become a published author, too!
Stay connected to IBM Redbooks
Notices
Trademarks
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