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首页> 外文期刊>IEEE transactions on very large scale integration (VLSI) systems >Dynamic Adjustment of Storage Class Memory Capacity in Memory-Resource Disaggregated Hybrid Storage With SCM and NAND Flash Memory
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Dynamic Adjustment of Storage Class Memory Capacity in Memory-Resource Disaggregated Hybrid Storage With SCM and NAND Flash Memory

机译：具有SCM和NAND闪存的内存资源分解混合存储中的存储类内存容量的动态调整

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摘要

Using storage class memories (SCMs) as nonvolatile cache of NAND flash memory is a promising solution for the high-performance storage. However, the problem is the high SCM cost per bit which is about ten times higher than NAND flash and the optimal SCM capacity is application dependent. The optimum SCM capacity is conventionally determined manually for every application operating on the data centers' storages. To achieve high performance while reducing the overall storage cost, application-aware autonomous SCM capacity adjustment (3ASCA) method is utilized to observe the warm data in NAND flash by the ghost least recently used list. SCM capacity in the memory-resource disaggregated storage with hybrid use of SCM and NAND flash is autonomously adjusted and effectively utilized for different applications. By saving the SCM capacity with 3ASCA, multiple applications in the disaggregated storage can efficiently utilize the limited SCM capacity at the same time.
机译：使用存储类存储器（SCM）作为NAND闪存的非易失性缓存是一种有前途的高性能存储解决方案。但是，问题在于每位的SCM成本很高，大约是NAND闪存的十倍，并且最佳SCM容量取决于应用。通常，对于在数据中心的存储上运行的每个应用程序，手动确定最佳SCM容量。为了在降低总体存储成本的同时实现高性能，采用了应用程序感知的自主SCM容量调整（3ASCA）方法，以最近最少使用的幽灵列表观察NAND闪存中的热数据。内存资源分类存储中SCM与SCM和NAND闪存混合使用的SCM容量可以自动调整，并可以有效地用于不同的应用程序。通过使用3ASCA节省SCM容量，分类存储中的多个应用程序可以同时有效利用有限的SCM容量。

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