SHEC

The Shingled Erasure Coding (SHEC) profile is designed with similar goals to the LRC plugin, in that it reduces the networking requirements during recovery. However, instead of creating extra parity shards on each node, SHEC shingles the shards across OSDs in an overlapping fashion. The shingle part of the plugin name represents the way the data distribution resembles shingled tiles on a roof of a house. By overlapping the parity shards across OSDs, the SHEC plugin reduces recovery resource requirements for both single and multiple disk failures.

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