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rPRAM: Exploring Redundancy Techniques to Improve Lifetime of PCM-based Main Memory

Jie Chen, Zachary Winter, Guru Venkataramani, H. Howie Huang
2011 2011 International Conference on Parallel Architectures and Compilation Techniques  
In this paper, we propose a novel PCMbased main memory system, rPRAM, that explores advanced redundancy techniques to resuscitate faulty PCM pages and reuse these pages to store data.  ...  Our preliminary experiments show that rPRAM has the potential to extend the lifetime of PCM based memory commensurate with the existing schemes like ECP, while incurring only a negligible fraction of hardware  ...  To this end, we propose rPRAM (redundancy PRAM), that explores extending PRAM device lifetime based on advanced redundancy techniques inspired by RAID (Redundant Arrays of Inexpensive Disks) technology  ... 
doi:10.1109/pact.2011.40 dblp:conf/IEEEpact/ChenWVH11 fatcat:hegimbltdjhkzbo7kzvztpvxae