Method and apparatus for allocating erasure coded data to disk storage

摘要: Allocation process that allows erasure coded data to be stored on any of a plurality disk drives, in pool so the allocation is not tied fixed group drives. Still further, encoded can generated by multiple different coding algorithms, where again storage restricted single drives based algorithm being utilized encode data. In another embodiment, "stacked" (aligned) select reduce number head seeks required access As result these improvements, system dynamically determine which one algorithms utilize for given incoming block, without particular and devices as prior art.