london ceph day: erasure coding: purpose and progress
Post on 16-Jan-2015
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Loic Dachary, Senior Developer, CloudWatt
TRANSCRIPT
Erasure Code in Ceph
Save Space
XOR
3 peta => 1.3 peta
Harder object mutations / recovery
Simple operations and tiering
Replicated Erasure Coded
Promoted to replica on read
Replicated Erasure Coded
Sam & David : refactor
Andreas & Loic : erasure code
Target : February 2014
Why save space before shortage ?
Alpha testers
Sponsors and developers
loic@dachary.org
Artwork GPLv3+ Tartaruga Feliz
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