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Created Erasure coding for warm storage (markdown)

Chris Lu committed 2019-06-05 10:37:29 -07:00
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Erasure-coding-for-warm-storage.md
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Warm data are accessed less frequently. To store them more efficiently, you can enable erasure coding.
Benefit
* Efficient memory usage and faster startup time. The volume server does not load index data into memory.
* RS(10,4) allows loss of 4 shards of data with 1.4x data size. Compared to 5x data size, it saves 3.6x disk space.