{"title":"软件控制单元位密度，提高NAND闪存寿命","authors":"Xavier Jimenez, D. Novo, P. Ienne","doi":"10.1145/2228360.2228404","DOIUrl":null,"url":null,"abstract":"Hybrid flash architectures combine static partitions in Single Level Cell (SLC) mode with partitions in Multi Level Cell (MLC) mode. Compared to MLC-only solutions, the former exploits fast and short random writes while the latter brings large capacity. On the whole, one achieves an overall tangible performance improvement for a moderate extra cost. Yet, device lifetime is an important aspect often overlooked. In this paper, we show how a dynamic SLC-MLC scheme provides significant lifetime improvement (up to 10 times) at no cost compared to any classic static SLC-MLC partitioning based on any state of the art Flash Translation Layer policy.","PeriodicalId":263599,"journal":{"name":"DAC Design Automation Conference 2012","volume":"2 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"20","resultStr":"{\"title\":\"Software controlled cell bit-density to improve NAND flash lifetime\",\"authors\":\"Xavier Jimenez, D. Novo, P. Ienne\",\"doi\":\"10.1145/2228360.2228404\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Hybrid flash architectures combine static partitions in Single Level Cell (SLC) mode with partitions in Multi Level Cell (MLC) mode. Compared to MLC-only solutions, the former exploits fast and short random writes while the latter brings large capacity. On the whole, one achieves an overall tangible performance improvement for a moderate extra cost. Yet, device lifetime is an important aspect often overlooked. In this paper, we show how a dynamic SLC-MLC scheme provides significant lifetime improvement (up to 10 times) at no cost compared to any classic static SLC-MLC partitioning based on any state of the art Flash Translation Layer policy.\",\"PeriodicalId\":263599,\"journal\":{\"name\":\"DAC Design Automation Conference 2012\",\"volume\":\"2 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-06-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"20\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"DAC Design Automation Conference 2012\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1145/2228360.2228404\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"DAC Design Automation Conference 2012","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1145/2228360.2228404","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Software controlled cell bit-density to improve NAND flash lifetime
Hybrid flash architectures combine static partitions in Single Level Cell (SLC) mode with partitions in Multi Level Cell (MLC) mode. Compared to MLC-only solutions, the former exploits fast and short random writes while the latter brings large capacity. On the whole, one achieves an overall tangible performance improvement for a moderate extra cost. Yet, device lifetime is an important aspect often overlooked. In this paper, we show how a dynamic SLC-MLC scheme provides significant lifetime improvement (up to 10 times) at no cost compared to any classic static SLC-MLC partitioning based on any state of the art Flash Translation Layer policy.
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