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On fault-tolerant data placement in storage networks / Mario Mense. 2008
Inhalt
Introduction
Storage (Area) Networks
The Storage Virtualization Layer
Storage Management Schemes
Demands on Data Placement in Storage Networks
A Brief Note on Erasure Encoding and Replication
Our Contribution
Some Classical Approaches
Random Allocation of Data Copies
Preliminary Section
The Basic Model
On the Practical Realization of the Allocation Function F
Further Preliminaries
The Redundant Allocation Problem
Analysis of the Probability Distribution P
Existence and Uniqueness
On the Imbalance Induced by Balls-into-Bins Allocations
COMB: An Allocation Strategy for Static Scenarios
SPREAD: An Adaptive Allocation Scheme for Dynamic Scenarios
Previous Adaptive Strategies
The SPREAD Strategy
Conclusion and Open Problems
Erasure Codes for Reading and Writing
Preliminaries
Data Reconstruction from Failures
The Operational Model
Lower Bounds
Encoding/Decoding in the RWC
The Matrix Approach
Security and Redundancy
Adaptive RW Codes
Boolean Read-Write-Codes
General RW-Codes
Conclusion
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