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by Wu Xu, Rajan Mishra, Rong Zeng, Jon Terner, Yu Bing Tang, Ravi Sure, Lin Feng Sh
IBM Spectrum Scale Erasure Code Edition: Planning and Implementation Guide
Front cover
Notices
Trademarks
Preface
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Chapter 1. Introduction to IBM Spectrum Scale Erasure Code Edition
1.1 Overview
1.2 Value proposition
1.3 Advantages and key features
1.3.1 High-performance erasure coding
1.3.2 Declustered erasure coding
1.3.3 End-to-end checksum for comprehensive data integrity
1.3.4 Extreme scalability
1.3.5 Enterprise storage features and manageability
1.4 Configuration options
1.5 Example ECE use cases
1.5.1 High-performance file serving
1.5.2 High-performance compute tier
1.5.3 High capacity data storage
1.6 Example configuration
1.7 Summary
Chapter 2. IBM Spectrum Scale Erasure Code Edition use cases
2.1 High-performance tier for ML/DL and analytics
2.2 High-performance file serving with CES protocol nodes
2.3 High-capacity data storage
Chapter 3. IBM Spectrum Scale RAID technical overview
3.1 Definitions of IBM Spectrum Scale RAID
3.2 Software RAID
3.2.1 RAID codes
3.2.2 Declustered RAID
3.2.3 Fault-tolerance
3.3 End-to-end checksum and data versions
3.4 Integrity Manager
3.5 Disk hospital
3.6 Storage hardware software interface
3.7 IBM Spectrum Scale RAID software component layout
3.8 Start up sequence for recovery group and log groups
3.9 Recovery of recovery group and log groups
3.10 ECE read and write strategies
3.10.1 Reads
3.10.2 Full track writes
3.10.3 Promoted full track writes
3.10.4 Medium writes
3.10.5 Small writes
3.10.6 Deferred writes and stale strips
Chapter 4. Planning an ECE installation
4.1 Sizing considerations
4.2 Precheck tools
4.2.1 SpectrumScale_ECE_OS_READINESS helper tool
4.2.2 SpectrumScale_ECE_OS_OVERVIEW helper tool
4.2.3 SpectrumScale_NETWORK_READINESS tool
4.3 Erasure code selection
4.4 Spare space allocation
4.5 Network planning
4.6 IBM Spectrum Scale node roles
4.7 Cluster Export Services
4.8 System management and monitoring
4.9 Other IBM Spectrum Scale components
4.10 Running applications
4.11 File and Object Solution Design Studio tool
Chapter 5. ECE installation procedures
5.1 Installation overview
5.2 IBM Spectrum Scale ECE installation prerequisites
5.2.1 Minimum requirements for ECE
5.2.2 SSH and network setup
5.2.3 Repository setup
5.3 IBM Spectrum Scale ECE installation background
5.4 IBM Spectrum Scale ECE installation and configuration
Chapter 6. Daily management of ECE storage
6.1 Drive replacement
6.1.1 Drive replacement cancellation
6.2 Replacing nodes
6.2.1 Node replacement with new drives
6.2.2 Replacing nodes and preserving drives from the old node
6.3 Adding nodes
6.4 Upgrading to a new IBM Spectrum Scale release
6.5 Upgrading operating system, firmware, driver, and patch
Chapter 7. Problem determination and debugging an ECE system
7.1 Check whether the ECE nodes are active in the cluster
7.2 Check whether the recovery groups are active
7.3 Check for pdisks that are ready for replacement
7.4 Check for pdisks that are not in OK state
7.5 Pdisk states
7.6 Check each recovery group’s event log for messages
7.7 Using the mmhealth command with ECE
7.8 System health monitoring use cases
7.9 Collecting data for problem determination
7.10 Network tools
Chapter 8. Summary
8.1 New Deployment Models
8.1.1 ECE on cloud
8.1.2 Building a containerized ECE solution
8.1.3 New erasure codes
8.2 Conclusion
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ISBN 0738458074
REDP-5557-00
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