Book description
This IBM® Redbooks® publication highlights IBM TS7700 Release 4.0. The IBM TS7700 is part of a family of IBM Enterprise tape products. This book is intended for system architects and storage administrators who want to integrate their storage systems for optimal operation.
The IBM TS7700 offers a modular, scalable, and high-performance
architecture for mainframe tape virtualization for the IBM z™
Systems environment. It is a fully integrated, tiered storage
hierarchy of disk and tape. This storage hierarchy is managed by
robust storage management microcode with extensive self-management
capability. It includes the following advanced functions:
Policy management to control physical volume pooling
Cache management
Redundant copies, including across a grid network
Copy mode control
The IBM TS7700 offers enhanced statistical reporting. It also
includes a standards-based Management Interface (MI) for IBM TS7700
management. IBM TS7700 R4.0 continues the next generation of IBM
TS7700 for z Systems® tape:
The IBM TS7760 is an all new hardware refresh and features
Encryption Capable, high-capacity cache that uses 4 TB
serial-attached Small Computer System Interface (SAS) HDDs in
arrays that use dynamic disk pool configuration. This setup can
scale to large capacities with the highest level of data
protection.
Release 4.0 introduces the option to attach to a TS4500 tape
library, and to the previous TS3500 tape library, which contains
back-end physical tape drives and policies to manage up to eight of
the disk repositories in a tape-attached TS7760T. This TS7760T
(Tape Attached) configuration mimics the behavior of a TS7740, with
additional features that go beyond what a TS7740 can
provide.
The TS7760T writes data by policy to physical tape through
attachment to high-capacity, high-performance IBM TS1150 and IBM
TS1140 tape drives installed in an IBM TS4500 or TS3500 tape
library.
The TS7760 models are based on high-performance and redundant IBM POWER8® technology. They provide improved performance for most z Systems tape workloads when compared to the previous generations of IBM TS7700.
Table of contents
- Front cover
- Notices
- Preface
- 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 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 About TVC cache management in a TS7700D and TS7700T CP0 stand-alone cluster
- 2.2.15 TVC Cache management in a TS7700T CPx stand-alone cluster
- 2.2.16 Expired virtual volumes and the Delete Expired function
- 2.2.17 TVC management processes for TS7740 or TS7700T 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 TS7700T 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 R3.1
- 2.3.37 Service preparation mode
- 2.3.38 Service mode
- 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 Encryption
- 3.3.10 z/OS Allocation assistance
- 3.3.11 25 GB logical volumes
- 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 (AOTM) 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)
- 4.3 Planning for software implementation
-
4.4 Planning for logical and physical volumes
- 4.4.1 Volume serial numbering
- 4.4.2 Logical 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 4.0
- 7.4 Adding clusters to a grid
- 7.5 Removing clusters from a grid
- Chapter 8. Migration
- Part 3 Operation
- Chapter 9. Operation
- Chapter 10. Host Console operations
-
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 / 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 Amount 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 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
- 13.4 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
Product information
- Title: IBM TS7700 Release 4.0 Guide
- Author(s):
- Release date: January 2017
- Publisher(s): IBM Redbooks
- ISBN: 9780738442136
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