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For three decades, Kryder's law correctly predicted an exponential increase in bit density on disk platters, leading to an exponential drop in cost per gigabyte, and thus to an entrenched expectation that if data could be stored for a few years the incremental cost of storing it forever would be minimal. However, disk now is over 7 times as expensive as Kryder's law would have predicted, and industry...
This paper explores the benefits and limitations of in-storage processing on current Solid-State Disk (SSD) architectures. While disk-based in-storage processing has not been widely adopted, due to the characteristics of hard disks, modern SSDs provide high performance on concurrent random writes, and have powerful processors, memory, and multiple I/O channels to flash memory, enabling in-storage...
Flash memory has become increasingly popular in today's storage systems. However, replacing hard drives with flash memory in current systems often either requires major file system changes or causes performance degradation due to the limitations of block-based interface and out-of-place updates required by flash. To alleviate this problem, we propose an object-based model for flash memory that gives...
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