Applying file information to block-level content addressable storage
نویسندگان
چکیده
منابع مشابه
Opportunistic Use of Content Addressable Storage for Distributed File Systems
Motivated by the prospect of readily available Content Addressable Storage (CAS), we introduce the concept of file recipes. A file’s recipe is a first-class file system object listing content hashes that describe the data blocks composing the file. File recipes provide applications with instructions for reconstructing the original file from available CAS data blocks. We describe one such applic...
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Content Addressable Storage (CAS) is increasingly being used as a technique to provide for space savings when storing datasets. In this paper we analyze the performance of CAS on real-world applications and discuss the effects on space savings, savings in network bandwidth and on resultant error resilience of data. We find that a chunksize of 1 KB can provide up to 84% space savings and even hi...
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1. Introduction Content addressable storage (CAS) is an emerging mechanism that can reduce the costs associated with this volume of data by eliminating such redundancy. Essentially, CAS uses cryptographic hashing techniques to identify data by its content rather than by name. Consequently, a CAS-based system will identify sets of identical objects and only store or transmit a single copy even i...
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ژورنال
عنوان ژورنال: Tsinghua Science and Technology
سال: 2009
ISSN: 1007-0214
DOI: 10.1016/s1007-0214(09)70005-7