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With the development of the NAND-Flash technology, NAND-Flash based Solid-State Disk (SSD) has been attracting a great deal of attention from both industry and academia. While a range of SSD research topics, from interface techniques to buffer management and Flash Translation Layer (FTL), from performance to endurance and energy efficiency, have been(More)
Flash Translation Layer (FTL) is one of the most important components of SSD, whose main purpose is to perform logical to physical address translation in a way that is suitable to the unique physical characteristics of the Flash memory technology. The pure page-mapping FTL scheme, arguably the best FTL scheme due to its ability to map any logical page(More)
This paper describes DSFS, a decentralized security system for large parallel file system. DSFS stores global access control lists (ACLs) in a centralized decision-making server and pushes pre-authorization lists (PALs) into storage devices. Thus DSFS allows users to flexibly set any access control policy for the global ACL or even change the global ACL(More)
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