LOT-ECC: LOcalized and Tiered Reliability Mechanisms for Commodity Memory Systems

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Provided by: The University of Tulsa
Topic: Storage
Format: PDF
With shrinking feature sizes and increasing capacity, memory system reliability is a growing concern. In some datacenter settings, it has been suggested that storage be built entirely out of DRAM memory, and large-scale systems be created by aggregating the main memory of thousands of servers. This places greater pressure on the memory system to not yield errors. High-availability servers are typically expected to provide chipkill-level reliability - the ability to withstand the failure of an entire DRAM chip.
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