Global Deduplication for Ceph
summary
A prototype global deduplication system for Ceph computes content fingerprints and maintains a distributed index of object hashes to avoid storing duplicate objects. It is implemented against RADOS and integrated into Ceph's cluster IO paths, tested across five regions, achieving an 8% storage reduction on the sample dataset while describing write redirection, performance impact under load, and observed failure/recovery behavior.
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chapters (5)
- 0:00Introduction to talk
- 11:34Global deduplication concept
- 16:07Ceph deduplication demo
- 23:23Implementation challenges
- 27:10Future improvements
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