14
Erasure Code in Ceph
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
