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by Dennis Robertson, Matthew Houzenga, Peter Kimmel, Bertrand Dufrasne
IBM DS8000 Easy Tier (Updated for DS8000 R9.0)
Front cover
Notices
Trademarks
Preface
Authors
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Summary of changes
October 2019, Ninth Edition
Chapter 1. IBM DS8000 Easy Tier
1.1 Introduction
1.2 Easy Tier evolution
1.3 Easy Tier license
1.4 Capabilities
1.4.1 Easy Tier Automatic Mode
1.4.2 Easy Tier Manual Mode
1.4.3 Easy Tier control
1.4.4 Storage Tier Advisor Tool
1.4.5 DS GUI: Easy Tier reporting
Chapter 2. DS8000 Easy Tier concepts, design, and implementation
2.1 Easy Tier features
2.2 General I/O characteristics
2.3 Easy Tier concepts
2.4 Easy Tier support for small extents
2.5 Easy Tier Report integrated in DS GUI
2.6 Easy Tier operating modes
2.6.1 Easy Tier Automatic Mode
2.6.2 Easy Tier Manual Mode
2.7 Easy Tier allocation controls
2.8 Easy Tier design
2.8.1 Flash, enterprise, and nearline storage tiers
2.8.2 Easy Tier performance metrics
2.8.3 Easy Tier cross-tier and intra-tier performance management
2.8.4 Migration plan creation
2.8.5 Easy Tier migration types
2.8.6 Promoting and swapping
2.8.7 Auto-rebalance
2.8.8 Warm and cold demote
2.8.9 Extent allocation in hybrid and managed extent pools
2.8.10 Easy Tier considerations
2.9 Easy Tier control
2.9.1 System-level Easy Tier control
2.9.2 Pool-level Easy Tier control
2.9.3 Volume-level Easy Tier control
Chapter 3. Planning for DS8000 Easy Tier
3.1 Prerequisites
3.2 Physical configuration planning and flash considerations
3.2.1 Flash technology features and benefits
3.2.2 Flash performance guidelines
3.2.3 Data placement guidelines, limitations, and considerations
3.3 Logical configuration planning
3.3.1 General considerations for DS8000 logical configurations
3.3.2 Guidelines for creating multi-tier extent pools
3.3.3 Guidelines for creating single-tier (homogeneous) extent pools
3.3.4 Other considerations for thin-provisioned volumes
3.4 Implementation considerations for multi-tier extent pools
3.4.1 Using thin provisioning with Easy Tier in multi-tier pools
3.4.2 Staged implementation approach for multi-tier pools
3.4.3 Working with pinned volumes
3.5 Copy Services considerations
3.6 Workload planning
Chapter 4. DS GUI and DS CLI support for IBM DS8000 Easy Tier
4.1 DS GUI support for Easy Tier
4.1.1 Easy Tier controls at the system level
4.1.2 Volume Properties window
4.1.3 Volume migration window
4.1.4 Disk configuration summary
4.1.5 Pool Properties window
4.1.6 Manage Volumes window
4.1.7 Merge Extent Pools window
4.1.8 Dynamic volume relocation
4.1.9 Dynamic extent pool merge
4.1.10 Rank depopulation
4.2 DS CLI support for Easy Tier
4.3 Easy Tier functions by using the DS CLI
4.3.1 Change storage system properties for Easy Tier
4.3.2 Dynamic volume relocation
4.3.3 Dynamic extent pool merge
4.3.4 Easy Tier Automatic Mode
4.4 Easy Tier control by using the DS CLI
4.4.1 Suspend or resume the Easy Tier migration process for an extent pool
4.4.2 Suspend and resume the Easy Tier monitoring process for extent pool
4.4.3 Reset the Easy Tier monitoring process for the extent pool
4.4.4 Suspend and resume the Easy Tier monitoring process for a volume
4.4.5 Reset the Easy Tier monitoring process for a volume
4.4.6 Assigning a volume to a tier (pinning a volume to a tier)
4.4.7 Exclude a volume from the nearline tier
4.4.8 Unassigning a certain tier from a volume
Chapter 5. DS8000 Easy Tier reporting
5.1 Easy Tier usage
5.2 Easy Tier Reporting in the DS8000 GUI
5.2.1 Easy Tier pool level reporting
5.2.2 Easy Tier Volume-Level Reporting
5.3 Using the Easy Tier data files
5.3.1 Easy Tier data files
5.4 STAT Charting Utility
5.4.1 Easy Tier skew curve
5.4.2 Easy Tier workload categorization
5.4.3 Easy Tier data movement report
5.5 Disk Magic and IBM Storage Modeller
5.5.1 Reading the skew curve into Disk Magic
Appendix A. IBM DS8000 Easy Tier and IBM z/OS system-managed storage
z/OS system-managed storage
Easy Tier storage management
Hybrid pools in z/OS system-managed storage environments
z/OS and thin-provisioning
z/OS Db2 synergy
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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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