IBM TS7700 Release 4.2 Guide
by Chen Zhu, Michael Scott, Aderson Pacini, Alberto Barajas Ortiz, Sosuke Matsui, J
IBM TS7700 Release 4.2 Guide
- Front cover
- Notices
- Preface
- Summary of changes
- Part 1 Architecture and planning
- Chapter 1. Introducing the IBM TS7700
- Chapter 2. Architecture, components, and functional characteristics
- 2.1 TS7700 architecture
- 2.2 Stand-alone cluster: Components, functions, and features
- 2.2.1 Views from the Host: Library IDs
- 2.2.2 Tape Volume Cache
- 2.2.3 Virtual volumes and logical volumes
- 2.2.4 Logical volumes and compression
- 2.2.5 Mounting a scratch virtual volume
- 2.2.6 Mounting a specific virtual volume
- 2.2.7 Logical WORM support and characteristics
- 2.2.8 Virtual drives
- 2.2.9 Selective Device Access Control
- 2.2.10 Physical drives
- 2.2.11 Stacked volume
- 2.2.12 Selective Dual Copy function
- 2.2.13 General TVC management in a stand-alone cluster
- 2.2.14 TVC Cache management in a TS7740 stand-alone cluster
- 2.2.15 TVC cache management in a TS7700D, TS7700T, and TS7760C CP0 stand-alone cluster
- 2.2.16 TVC Cache management in a TS7700T CPx stand-alone cluster
- 2.2.17 Expired virtual volumes and the Delete Expired function
- 2.2.18 TVC management processes for TS7740, TS7700T, or TS7760C CPx
- 2.2.19 TVC handling in outage situations
- 2.2.20 Copy Consistency Point: Copy policy modes in a stand-alone cluster
- 2.2.21 TVC selection in a stand-alone cluster
- 2.2.22 TVC encryption
- 2.2.23 Physical volume pools
- 2.2.24 Logical and stacked volume management
- 2.2.25 Secure Data Erase function
- 2.2.26 Copy Export function
- 2.2.27 Encryption of physical tapes
- 2.2.28 User Management: Roles and profiles
- 2.2.29 Security identification by using Lightweight Directory Access Protocol
- 2.2.30 Grid Resiliency Functions
- 2.2.31 Service preparation mode
- 2.2.32 Service mode
- 2.2.33 Control Unit Initiated Reconfiguration
- 2.3 Multi-cluster grid configurations: Components, functions, and features
- 2.3.1 Rules in a multi-cluster grid
- 2.3.2 Required grid hardware
- 2.3.3 Data integrity by volume ownership
- 2.3.4 I/O TVC selection
- 2.3.5 Copy consistency points
- 2.3.6 Cluster family concept
- 2.3.7 Override settings concept
- 2.3.8 Host view of a multi-cluster grid and Library IDs
- 2.3.9 Tape Volume Cache
- 2.3.10 Virtual volumes and logical volumes
- 2.3.11 Mounting a scratch virtual volume
- 2.3.12 Mounting a specific virtual volume
- 2.3.13 Logical WORM support and characteristics
- 2.3.14 Virtual drives
- 2.3.15 Allocation assistance
- 2.3.16 Selective Device Access Control
- 2.3.17 Physical drives
- 2.3.18 Stacked volume
- 2.3.19 Selective Dual Copy function
- 2.3.20 General TVC management in multi-cluster grids
- 2.3.21 Expired virtual volumes and the Delete Expired function
- 2.3.22 TVC management for TS7740/TS7700T/TS7760C CPx in a multi-cluster grid
- 2.3.23 TVC management for TS7760 or TS7720 in a multi-cluster grid
- 2.3.24 TVC management processes in a multi-cluster grid
- 2.3.25 Copy Consistency Point: Copy policy modes in a multi-cluster grid
- 2.3.26 TVC (I/O) selection in a multi-cluster grid
- 2.3.27 TVC handling in an unavailability condition
- 2.3.28 Remote (cross) cluster mounts
- 2.3.29 TVC encryption
- 2.3.30 Logical and stacked volume management
- 2.3.31 Secure Data Erase
- 2.3.32 Copy Export
- 2.3.33 Encryption of physical tapes
- 2.3.34 Autonomic Ownership Takeover Manager
- 2.3.35 Selective Write Protect for disaster recovery testing
- 2.3.36 FlashCopy for disaster recovery testing
- 2.3.37 Grid resiliency functions
- 2.3.38 Service preparation mode
- 2.3.39 Service mode
- 2.3.40 Control Unit Initiated Reconfiguration
- 2.4 Grid configuration examples
- Chapter 3. IBM TS7700 usage considerations
- 3.1 Introduction
- 3.2 Gather your business requirements
- 3.3 Features and functions for all TS7700 models
- 3.3.1 Stand alone versus grid environments
- 3.3.2 Sharing a TS7700
- 3.3.3 Tape Volume Cache selection
- 3.3.4 Copy Consistency policy
- 3.3.5 Synchronous mode copy
- 3.3.6 Override policies
- 3.3.7 Cluster family
- 3.3.8 Logical Volume Delete Expire Processing versus previous implementations
- 3.3.9 Software compression (LZ4 and ZSTD)
- 3.3.10 Encryption
- 3.3.11 z/OS Allocation with multiple grids connected to a single host
- 3.3.12 z/OS Allocation assistance inside a grid
- 3.3.13 25 GB logical volumes
- 3.3.14 Grid resiliency function: “Remote†fence
- 3.3.15 Control Unit Initiated Reconfiguration
- 3.4 Features and functions available only for the TS7700T
- 3.5 Operation aspects: Monitoring and alerting
- 3.6 Choosing a migration method
- Chapter 4. Preinstallation planning and sizing
- 4.1 Hardware installation and infrastructure planning
- 4.2 Planning for a grid operation
- 4.2.1 Autonomic Ownership Takeover Manager considerations
- 4.2.2 Defining grid copy mode control
- 4.2.3 Defining scratch mount candidates
- 4.2.4 Retain Copy mode
- 4.2.5 Defining cluster families
- 4.2.6 TS7720 and TS7760 cache thresholds and removal policies
- 4.2.7 Data management settings (TS7740/TS7700T CPx in a multi-cluster grid)
- 4.2.8 High availability considerations
- 4.2.9 Planning for cloud operation
- 4.3 Planning for software implementation
- 4.3.1 Host configuration definition
- 4.3.2 Software requirements
- 4.3.3 System-managed storage tape environments
- 4.3.4 Sharing and partitioning considerations
- 4.3.5 Library Manager Category Usage Considerations
- 4.3.6 Sharing the TS7700 by multiple hosts
- 4.3.7 Partitioning the TS7700 between multiple hosts
- 4.3.8 Logical path considerations
- 4.4 Planning for logical and physical volumes
- 4.4.1 Volume serial numbering
- 4.4.2 Virtual volumes
- 4.4.3 Logical WORM
- 4.4.4 Physical volumes for TS7740, TS7720T, and TS7760T
- 4.4.5 Data compression
- 4.4.6 Secure Data Erase function
- 4.4.7 Planning for tape encryption in a TS7740, TS7720T, and TS7760T
- 4.4.8 Planning for cache disk encryption in the TS7700
- 4.5 Tape analysis and sizing the TS7700
- Chapter 5. Disaster recovery
- Part 2 Implementation and migration
- Chapter 6. IBM TS7700 implementation
- Chapter 7. Hardware configurations and upgrade considerations
- 7.1 TS7700 hardware components
- 7.2 TS7700 component upgrades
- 7.2.1 TS7700 concurrent system component upgrades
- 7.2.2 TS7700 non-concurrent system component upgrades
- 7.2.3 TS7760 Cache upgrade options
- 7.2.4 TS7720 Cache upgrade options
- 7.2.5 TS7740 Tape Volume Cache upgrade options
- 7.2.6 Upgrading drive models in an existing TS7740 or TS7700T
- 7.2.7 Frame replacement of old hardware with new hardware
- 7.3 TS7700 upgrade to Release 4.2
- 7.4 Adding clusters to a grid
- 7.5 Removing clusters from a grid
- Chapter 8. Migration
- 8.1 Migration to a TS7700
- 8.2 Migration between TS7700s
- 8.3 Methods to move data for host-based migration
- 8.4 Moving data out of the TS7700
- 8.5 Migration of DFSMShsm-managed data
- 8.6 DFSMSrmm and other tape management systems
- 8.7 IBM Spectrum Protect
- 8.8 DFSMSdss
- 8.9 Object access method
- 8.10 Database backups
- Part 3 Operations
- Chapter 9. Configuring and operating the IBM TS7700
- Chapter 10. Host Console operations
- 10.1 System-managed tape
- 10.2 Messages from the library
- 10.3 EXPIRE HOLD and scratch processing considerations
- 10.4 Scratch count mismatch
- 10.5 Host cartridge entry processing
- 10.6 Effects of changing volume categories
- 10.7 Library messages and automation
- 10.8 Mount retry
- 10.9 CUIR for tape
- 10.10 Cloud Storage tier considerations (R4.2 enhancement)
- 10.11 Return-to-scratch enhancement
- 10.12 Deleting logical volumes
- Chapter 11. Performance and monitoring
- 11.1 Overview
- 11.2 TS7700 performance characteristics
- 11.3 Basic performance overview
- 11.4 Monitoring TS7700 performance
- 11.5 Cache capacity
- 11.6 Cache throughput and cache bandwidth
- 11.7 TS7700 throughput: Host I/O increments
- 11.8 Grid link and replication performance
- 11.8.1 Installed grid link hardware: Mixing of different Grid link adapters
- 11.8.2 Bandwidth and quality of the provided network
- 11.8.3 Selected replication mode
- 11.8.4 Tuning possibilities for copies: COPYCOUNT Control
- 11.8.5 Tuning possibilities for copies: Deferred Copy Throttling
- 11.8.6 Grid link performance monitoring
- 11.9 Considerations for the backend TS7740 / TS7700T
- 11.9.1 Amount of Back-end drives
- 11.9.2 Monitor Backend drives in the MI
- 11.9.3 Monitor Backend drives in the VEHSTATS
- 11.9.4 Monitor Backend drives with a LI REQ command
- 11.9.5 Tune the usage of back-end drives
- 11.9.6 Number of back-end cartridges
- 11.9.7 Monitor the usage of back-end cartridges on the MI
- 11.9.8 Monitor the usage of back-end cartridges with VEHSTATS
- 11.9.9 Tuning of the usage of Back-end cartridges with VEHSTATS
- 11.10 Throttling the TS7700
- 11.11 Adjusting parameters in the TS7700
- 11.12 Monitoring after service or outage
- 11.13 Performance evaluation tool: Plotting cache throughput from VEHSTATS
- 11.14 Bulk Volume Information Retrieval
- 11.15 Alerts and exception and message handling
- 11.16 IBM Tape Tools
- 11.17 Using Volume Mount Analyzer
- 11.18 Using VEHSTATS and VEHGRXCL for monitoring and reporting
- 11.19 IBM z/OS commands for monitoring
- 11.20 What to look for and where
- 11.21 Virtual Device Allocation in z/OS with JES2
- Chapter 12. Copy Export
- Chapter 13. Disaster recovery testing
- 13.1 DR testing overview
- 13.2 DR testing methods
- 13.3 DR testing general considerations
- 13.3.1 The z/OS test environment represents a point in time
- 13.3.2 The data that is available in the DR cluster
- 13.3.3 Write Protect Mode
- 13.3.4 Protection of your production data
- 13.3.5 Separating production and disaster recovery hosts: Logical volumes
- 13.3.6 Creating data during the disaster recovery test from the DR host: Selective Write Protect
- 13.3.7 Creating data during the disaster recovery test from the disaster recovery host: Copy policies
- 13.3.8 Restoring the DR host from a production host
- 13.3.9 Scratch runs during the disaster recovery test from the production host
- 13.3.10 Scratch runs during the disaster recovery test from the DR host
- 13.3.11 Cleanup phase of a disaster recovery test
- 13.3.12 Considerations for DR tests without Selective Write Protect mode
- 13.3.13 Returning to scratch without using Selective Write Protect
- 13.3.14 Tier to Cloud Considerations
- 13.4 DR for FlashCopy concepts and command examples
- 13.5 DR testing methods examples
- 13.6 Expected failures during a DR test
- Part 4 Appendixes
- Appendix A. Feature codes and RPQ
- Appendix B. IBM TS7700 implementation for IBM z/VM, IBM z/VSE, and IBM z/TPF environments
- Appendix C. JES3 examples and information
- Appendix D. DEVSERV QLIB command
- Appendix E. Sample job control language
- Appendix F. Library Manager volume categories
- Appendix G. IBM TS7700 parameter examples
- Appendix H. Extra IODF examples
- Appendix I. Case study for logical partitioning of a two-cluster grid
- Related publications
- Back cover
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