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CPR for SSDs

Title
CPR for SSDs
Authors
Kim, Bryan S.Lee, EunjiLee, SungjinMin, Sang Lyul
DGIST Authors
Lee, Sungjin
Issue Date
2019-05-14
Citation
2019 Workshop on Hot Topics in Operating Systems, HotOS 2019, 201-208
Type
Conference
ISBN
9781450367271
Abstract
Modern storage systems are built upon the assumption that the capacity of a storage device does not change. This capacity-invariant interface forces a flash-based storage device to trade performance for reliability when, in fact, it can maintain both if a graceful reduction in capacity were to be allowed. We argue that relaxing the fixed capacity abstraction of the storage device allows for a better capacity-performance-reliability (CPR) tradeoff. We then outline existing device-internal mechanisms for building a capacity-variant flash device, and describe the necessary changes in the storage stack. © 2019 ACM.
URI
http://hdl.handle.net/20.500.11750/10058
DOI
10.1145/3317550.3321437
Publisher
Association for Computing Machinery, Inc
Related Researcher
  • Author Lee, Sungjin Data-Intensive Computing Systems Laboratory
  • Research Interests Computer System, System Software, Storage System, Non-volatile Memory, Flash-based SSD, Distributed Storage Systems
Files:
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Collection:
Department of Information and Communication EngineeringData-Intensive Computing Systems Laboratory2. Conference Papers


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