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by Chen Zhu, Michael Scott, Markus Schäfer, Aderson Pacini, Sosuke Matsui, Joe Hew,
IBM TS7700 Release 3.3
Front cover
Notices
Trademarks
IBM Redbooks promotions
Preface
Summary of contents
Authors
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Part 1 Architecture and planning
Chapter 1. Introducing the IBM TS7700
1.1 Overview
1.2 Concepts of storage virtualization
1.3 Benefits of tape virtualization
1.4 Managing the IBM TS7700
1.5 Data storage values
Chapter 2. Architecture, components, and functional characteristics
2.1 TS7700 architecture
2.1.1 Monolithic design of a Virtual Tape Server
2.1.2 Modular design of the TS7700
2.1.3 Previous peer-to-peer VTS design
2.1.4 Principles of grid design
2.1.5 TS7700 Models
2.1.6 Introduction of the TS7720T
2.1.7 Management of the TS7700
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 Mounting a scratch virtual volume
2.2.5 Mounting a specific virtual volume
2.2.6 Logical WORM support and characteristics
2.2.7 Virtual drives
2.2.8 Selective Device Access Control
2.2.9 Physical drives
2.2.10 Stacked volume
2.2.11 Selective Dual Copy function
2.2.12 General TVC management in a stand-alone cluster
2.2.13 TVC Cache management in a TS7740 stand-alone cluster
2.2.14 TVC cache management in a TS7720 and TS7720T CP0 stand-alone cluster
2.2.15 TVC Cache management in a TS7720T CPx stand-alone cluster
2.2.16 Expired virtual volumes and the Delete Expired function
2.2.17 TVC management processes for TS7740 or TS7720T CPx
2.2.18 TVC handling in outage situations
2.2.19 Copy Consistency Point: Copy policy modes in a stand-alone cluster
2.2.20 TVC selection in a stand-alone cluster
2.2.21 TVC encryption
2.2.22 Physical volume pools
2.2.23 Logical and stacked volume management
2.2.24 Secure Data Erase function
2.2.25 Copy Export function
2.2.26 Encryption of physical tapes
2.2.27 User Management: Roles and profiles
2.2.28 Security identification by using Lightweight Directory Access Protocol
2.2.29 Service preparation mode
2.2.30 Service mode
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 and TS7720T CPx in a multi-cluster grid
2.3.23 TVC management for 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 R3.1
2.3.37 Service preparation mode
2.3.38 Service mode
2.4 Grid configuration examples
2.4.1 Homogeneous versus hybrid grid configuration
2.4.2 Planning for high availability or disaster recovery in limited distances
2.4.3 Disaster recovery capabilities in a remote data center
2.4.4 Configuration examples
Chapter 3. IBM TS7700 usage considerations
3.1 Introduction
3.1.1 A short look at history
3.1.2 Challenges of today’s businesses
3.1.3 Challenges of technology progress
3.2 Gather your business requirements
3.2.1 Environment: Source of data
3.2.2 Backup data, active data, and archive data
3.2.3 IBM DB2 archive log handling
3.2.4 DFSMShsm Migration Level 2
3.2.5 Object access method: Object processing
3.2.6 Batch processing: Active data
3.2.7 Data type and cache control
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 Encryption
3.3.10 z/OS Allocation assistance
3.3.11 25 GB logical volumes
3.4 Features and functions available only for the TS7720T
3.5 Operation aspects: Monitoring and alerting
3.5.1 Message handling
3.5.2 Regularly scheduled performance monitoring
3.5.3 Optional checks
3.6 Choosing a migration method
3.6.1 Host-based migration
3.6.2 TS7700 internal data migration
3.6.3 Tape drive technology behind a TS7700
Chapter 4. Preinstallation planning and sizing
4.1 Hardware installation and infrastructure planning
4.1.1 System requirements
4.1.2 Tape drives and media support (TS7740 and TS7720T)
4.1.3 Limitations
4.1.4 TCP/IP configuration considerations
4.1.5 Remote installations and FICON switch support
4.1.6 Factors that affect performance at a distance
4.1.7 Host attachments
4.1.8 FICON Director support
4.1.9 FICON channel extenders
4.1.10 Cascaded switches
4.1.11 Planning for LDAP for user authentication in your TS7700 subsystem
4.2 Planning for a grid operation
4.2.1 Defining grid copy mode control
4.2.2 Defining scratch mount candidates
4.2.3 Retain Copy mode
4.2.4 Defining cluster families
4.2.5 TS7720 cache thresholds and removal policies
4.2.6 Data management settings (TS7740 & TS7720T CPx in a multi-cluster grid)
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 Sharing the TS7700 by multiple hosts
4.3.6 Partitioning the TS7700 between multiple hosts
4.3.7 Logical path considerations
4.4 Planning for logical and physical volumes
4.4.1 Logical volumes
4.4.2 Logical WORM
4.4.3 Physical volumes for TS7740 or TS7720T
4.4.4 Data compression
4.4.5 Secure Data Erase function
4.4.6 Planning for tape encryption in a TS7740 or TS7720T
4.4.7 Planning for Cache Disk Encryption in the TS7700
4.5 Tape analysis and sizing the TS7700
4.5.1 IBM tape tools
4.5.2 BatchMagic
4.5.3 Workload considerations
4.5.4 Education and training
4.5.5 Implementation services
Part 2 Implementation and migration
Chapter 5. IBM TS7700 implementation
5.1 TS7700 implementation
5.2 TS3500 tape library definitions (TS7740 or TS7720T)
5.3 Setting up the TS7700
5.3.1 Definitions for TS7740 or TS7720T
5.3.2 TS7700 definitions
5.4 Hardware configuration definition
5.4.1 Defining devices through HCD
5.4.2 Activating the I/O configuration
5.5 Setting values for the Missing Interrupt Handler
5.6 TS7700 software definitions
Chapter 6. Hardware configurations and upgrade considerations
6.1 TS7700 hardware components
6.1.1 Common components for the TS7700 models
6.1.2 TS7720 disk-only components
6.1.3 TS7720T components
6.1.4 TS7740 components
6.1.5 TS3000 Total System Storage Console
6.1.6 Cables
6.2 TS7700 component upgrades
6.2.1 TS7700 concurrent system component upgrades
6.2.2 TS7700 non-concurrent system component upgrades
6.2.3 TS7720 Cache upgrade options
6.2.4 TS7740 Tape Volume Cache upgrade options
6.3 TS7700 upgrade to Release 3.3
6.3.1 Planning for the upgrade
6.4 Adding clusters to a grid
6.4.1 TS7700 grid upgrade concept
6.4.2 Considerations when adding a cluster to the existing configuration
6.4.3 Considerations for merging an existing cluster or grid into a grid
6.5 Removing clusters from a grid
6.5.1 Reasons to remove a cluster
6.5.2 High-level description of the process
Chapter 7. Migration
7.1 Migration to a TS7700
7.1.1 Grid to Grid Migration
7.2 Upgrading drive models in an existing TS7740 or TS7720T
7.3 Moving data in and out of the TS7700
7.3.1 Phased method of moving data
7.3.2 Quick method of moving data
7.3.3 Products to simplify the task
7.3.4 Considerations for static VOLSERs
7.3.5 Combining methods to move data into the TS7700
7.3.6 Moving data out of the TS7700
7.4 Migration of DFSMShsm managed data
7.4.1 Volume and data set sizes
7.4.2 TS7700 implementation considerations
7.4.3 DFSMShsm task-related considerations
7.5 DFSMSrmm and other tape management systems
7.6 IBM Tivoli Storage Manager
7.7 DFSMSdss
7.7.1 Full volume dumps
7.7.2 Stand-Alone Services
7.8 Object access method
7.9 Database backups
7.9.1 DB2 data
7.9.2 CICS and IMS
7.9.3 Batch data
Part 3 Operation
Chapter 8. Operation
8.1 User interfaces
8.1.1 TS3500 tape library GUI
8.1.2 Call Home and Electronic Customer Care
8.2 TS7700 Management Interface
8.2.1 Connecting to the Management Interface
8.2.2 Using the TS7700 Management Interface
8.2.3 The Systems icon
8.2.4 The Monitor icon
8.2.5 Performance
8.2.6 The Virtual icon
8.2.7 The Physical icon
8.2.8 The Constructs icon
8.2.9 The Access icon
8.2.10 The Settings icon
8.2.11 The Service icon
8.3 Common procedures
8.3.1 TS3500 tape library with a TS7740 and TS7720T
8.3.2 TS7740 or TS7720T definitions
8.3.3 TS7700 definitions
8.3.4 TS7700 multi-cluster definitions
8.4 Basic operations
8.4.1 Clock and time setting
8.4.2 Library in Pause mode
8.4.3 Preparing a TS7700 for service
8.4.4 TS3500 Tape Library inventory
8.4.5 Inventory upload
8.5 Tape cartridge management
8.5.1 3592 tape cartridges and labels
8.5.2 Manual insertion of stacked cartridges
8.6 Cluster intervention scenarios
8.6.1 Hardware conditions
8.6.2 TS7700 LIC processing failure
8.7 TS7700 Management Interface considerations
Chapter 9. Host Console operations
9.1 System-managed tape
9.1.1 DFSMS operator commands
9.1.2 MVS system commands
9.1.3 Host Console Request function
9.1.4 Library LMPOLICY command
9.1.5 Useful DEVSERV QUERY commands
9.1.6 Scratch volume recovery for logical volumes
9.1.7 Ejecting logical volumes
9.2 Messages from the library
9.2.1 Alert setting messages
9.2.2 TS7700 Host Console messages
9.3 EXPIRE HOLD and scratch processing considerations
9.4 Scratch count mismatch
9.5 Effects of changing categories
9.6 Library messages and automation
Chapter 10. Performance and monitoring
10.1 Overview
10.2 TS7700 performance characteristics
10.3 Performance overview
10.3.1 TS7700 components and task distribution
10.3.2 Grid considerations and replication modes
10.3.3 Workload profile from your hosts
10.3.4 Lifecycle Management of your data
10.3.5 Parameters and customization of the TS7700
10.3.6 Types of throughput
10.3.7 Throttling in the TS7700
10.4 Monitoring TS7700 performance
10.4.1 Base information: Types of statistical records
10.4.2 Using the TS3500 Tape Library Specialist for monitoring
10.4.3 Using the TS7700 Management Interface to monitor IBM storage
10.4.4 Replication Monitoring
10.4.5 Management of unwanted copies
10.4.6 Alerting of specific events
10.5 TS7700 cache throughput
10.5.1 Performance evaluation tool: Plotting cache throughput from VEHSTATS
10.5.2 Interpreting cache throughput
10.6 Adjusting the TS7700
10.6.1 Deferred Copy throttle value and threshold
10.6.2 Premigration and premigration throttling values
10.6.3 Making your cache deeper
10.6.4 Back-end drives
10.6.5 Grid links
10.7 Bulk Volume Information Retrieval
10.7.1 Overview of the BVIR function
10.7.2 Prerequisites
10.7.3 Request data format
10.7.4 Response data format
10.7.5 Interpreting the BVIR response data
10.8 IBM Tape Tools
10.8.1 Introduction to IBM Tape Tools
10.8.2 Tools download and installation
10.8.3 IBM Tape Tools for TS7700 monitoring
10.9 Using Volume Mount Analyzer
10.10 Using VEHSTATS and VEHGRXCL for monitoring and reporting
10.10.1 VEHSTATS tool overview
10.10.2 Running the VEHSTATS jobs
10.10.3 VEHSTATS reports
10.10.4 VEHGRXCL tool overview
10.11 IBM z/OS commands for monitoring
10.11.1 DISPLAY SMS commands
10.11.2 LIBRARY command
10.12 What to look for and where
10.13 Virtual Device Allocation in z/OS with JES2
10.13.1 EQUAL allocation
10.13.2 BYDEVICES allocation
10.13.3 Allocation and Copy Consistency Point setting
10.13.4 Allocation and device allocation assistance
10.13.5 Allocation and scratch allocation assistance
Chapter 11. Copy Export
11.1 Copy Export overview and considerations
11.1.1 General considerations for Copy Export
11.1.2 Copy Export grid considerations
11.1.3 Reclaim process for Copy Export physical volumes
11.1.4 Copy Export process messages
11.2 Implementing and running Copy Export
11.2.1 Setting up data management definitions
11.2.2 Validating before activating the Copy Export function
11.2.3 Running the Copy Export operation
11.2.4 Canceling a Copy Export operation
11.2.5 Host completion message
11.3 Using Copy Export Recovery
11.3.1 Planning and considerations for testing Copy Export Recovery
11.3.2 Performing Copy Export Recovery
11.3.3 Restoring the host and library environments
Chapter 12. Disaster recovery
12.1 TS7700 disaster recovery principles
12.1.1 Data availability
12.1.2 Deferred Copy Queue
12.1.3 Volume ownership
12.2 Failover scenarios
12.3 Planning for disaster recovery
12.3.1 Disaster recovery site connectivity IODF considerations
12.3.2 Grid configuration
12.3.3 Planning guidelines
12.4 High availability and disaster recovery configurations
12.4.1 Restoring the host and library environments
12.5 Disaster recovery testing basics
12.5.1 Disaster recovery general considerations
12.5.2 Breaking the interconnects between the TS7700 grid
12.5.3 Considerations for DR tests without Selective Write Protect mode
12.6 Disaster recovery testing detailed procedures for FlashCopy
12.6.1 Planning your disaster recovery test
12.6.2 Running Phase 1: Preparation
12.6.3 Running Phase 2: Enablement
12.6.4 Running Phase 3: Running the disaster recovery test
12.6.5 Running Phase 4: Cleaning up
12.6.6 Running Phase 5: Disabling the Write Protect and FlashCopy
12.6.7 Expected failures during the DR test
12.7 Disaster recovery testing detailed procedures for alternatives before Release 3.1
12.7.1 TS7700 2-cluster grid that uses Selective Write Protect
12.7.2 TS7700 2-cluster grid not using Selective Write Protect
12.7.3 TS7700 3-cluster grid not using Selective Write Protect
12.8 A real disaster
12.9 Geographically Dispersed Parallel Sysplex for z/OS
12.9.1 Geographically Dispersed Parallel Sysplex considerations in a TS7700 grid configuration
12.9.2 Geographically Dispersed Parallel Sysplex functions for the TS7700
12.9.3 Geographically Dispersed Parallel Sysplex implementation
Part 4 Appendixes
Appendix A. Feature codes and RPQ
RPQ
Feature code lists
Appendix B. IBM TS7700 implementation for IBM z/VM, IBM z/VSE, and IBM z/TPF environments
Software requirements
Software implementation in z/VM and z/VSE
Software implementation in z/OS Transaction Processing Facility
Implementing Outboard Policy Management for non-z/OS hosts
Appendix C. JES3 examples and information
JES3 support for system-managed tape
Example with two separate tape libraries
Example with three Tape Libraries
Processing changes
Appendix D. DEVSERV QLIB command
Appendix E. Sample job control language
BVIR jobs to obtain historical data
Extra BVIR reporting
VEHSTATS reports
Export list volume sample JCL
JCL for TS7700 migration scenarios
Appendix F. Library Manager volume categories
Appendix G. IBM TS7700 parameter examples
General example setup
Appendix H. Extra IODF examples
General IODF principles
Appendix I. Case study for logical partitioning of a two-cluster grid
Overview of partitioning
Definitions and settings in z/OS
Definitions on the TS7700 Management Interface
Verification of changes
Related publications
IBM Redbooks publications
Other publications
Technical documents on the IBM Techdocs website
Help from IBM
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Note: Before using this information and the product it supports, read the information in “Notices” on page xiii.
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