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Method and System for Optimizing Deterministic Garbage Collection in Nand Flash Storage Systems
Method and System for Optimizing Deterministic Garbage Collection in Nand Flash Storage Systems
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机译:Nand Flash存储系统中确定性垃圾收集优化的方法和系统
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摘要
A method for partial garbage collection in a NAND flash storage system is disclosed. The method includes receiving a real time data request task in a NAND flash storage system; executing the real time data request task in the NAND flash storage system; determining a condition whether a number of free pages in the NAND flash storage system is below a pre-determined threshold; for the condition that the number of free pages in the NAND flash storage system is below a pre-determined threshold, determining whether a partial garbage collection list is empty; for the condition that the partial garbage collection list is empty, selecting a victim block from a plurality of blocks in the NAND flash storage system; creating partial garbage collection tasks in the NAND flash storage system; and putting the partial garbage collection tasks in the partial garbage collection list.
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