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Chunk Segment Recovery via Hierarchical Erasure Coding in a Geographically Diverse Data Storage System
Chunk Segment Recovery via Hierarchical Erasure Coding in a Geographically Diverse Data Storage System
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机译:地理上分散的数据存储系统中通过分层擦除编码进行块分段恢复
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摘要
Recovery of chunk segments stored via hierarchical erasure coding in a geographically diverse data storage system is disclosed. Chunks can be stored according to a first-level erasure coding scheme in zones of a geographically diverse data storage system. The chunks can then be further protected via one or more second-level erasure coding schema within a corresponding zone of the geographically diverse data storage system. In response to determining segment of a chunk has become less accessible, recover of the segment can be performed according to the hierarchical erasure coding scheme of relevant chunks at relevant zones of the geographically diverse data storage system.
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