Abstract:In striped disk array systems, the independency of disks for prefetching is more important than parallelism under high concurrency of accesses, based on which strip prefetching with low read cost has more ability to improve the performance of RAID. However, it indiscriminately fetching all the involved strips limits its applicability. To solve this problem, we propose a Locality-aware Strip Prefetching Scheme (LSP), where it keeps track of the users’ accesses and identifies the hot data areas. Only t… Show more
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