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Table of Contents
Introduction
Motivation
Tape setup
Tape backup
Trade-off
Main observations
The Venti archival server
Unique hashes
Hashes as addresses
Backup behavior with Venti
Hashes as addresses II
Hashes as addresses III
Choice of hash function
Likelihood of a collision
Using Venti by an application
Tree of fingerprints
Vac
Vac II
The plan-9 file-system
The plan-9 file-system II
The Plan-9 file-system III
Plan9-FS based on Venti
Implementation
The log
The log II
The index
The index II
Performance issues
Caching
Hardware
Base performance
Historical data
File servers
De-duplication
Reliability and Recovery
Summary