Title:
e-SAFE: An Extensible Secure and Fault Tolerant Storage System

dc.contributor.author Paul, Arnab
dc.contributor.author Agarwala, Sandip
dc.contributor.author Ramachandran, Umakishore
dc.date.accessioned 2005-03-30T19:46:51Z
dc.date.available 2005-03-30T19:46:51Z
dc.date.issued 2005
dc.description.abstract With the rapidly falling price of hardware, and increasingly available bandwidth, storage technology is seeing a paradigm shift from centralized and managed mode to distributed and unmanaged configurations. The key issues in designing such systems include scalability, extensibility and robustness to name a few. This paper describes e-SAFE , a scalable distributed storage system that deploys a pastiche of theoretical and practical techniques, providing tolerance of malicious faults, reduced management overhead such as periodic repairs, and very high availability at an archival scale. e-SAFE is designed to provide a storage utility for environments such as large-scale data centers in enterprise networks where the servers experience high loads and thus show temporary unavailability (as opposed to P2P systems, where servers disappear over the long run). Consequently, the design goal of e-SAFE is to provide high load resilience in a seamlessly extensible way. e-SAFE is based on the simple principle: efficiently sprinkle data all over a distributed storage and robustly reconstruct even when many of them are unavailable under high loads. The performance gears used in e-SAFE are: (i) Task parallelization over multiple file segments that can take advantage of an SMP architecture, (ii) Erasure codes with very fast encoding and decoding algorithms as opposed to naive replications and (iii) A back-ground replication mechanism hiding the cost of replication and dissemination from the user, yet guaranteeing high durability. en
dc.format.extent 328688 bytes
dc.format.mimetype application/pdf
dc.identifier.uri http://hdl.handle.net/1853/5959
dc.language.iso en_US
dc.publisher Georgia Institute of Technology en
dc.relation.ispartofseries CERCS;GIT-CERCS-05-03
dc.subject Background replication en
dc.subject Distributed storage systems en
dc.subject Erasure codes en
dc.subject e-SAFE en
dc.subject Extensibility en
dc.subject High load resilience en
dc.subject Large-scale data centers en
dc.subject Reconstruction en
dc.subject Robustness en
dc.subject Scalability en
dc.subject Storage systems en
dc.subject Task parallelization en
dc.title e-SAFE: An Extensible Secure and Fault Tolerant Storage System en
dc.title.alternative Extensible Secure and Fault Tolerant Storage System
dc.type Text
dc.type.genre Technical Report
dspace.entity.type Publication
local.contributor.author Ramachandran, Umakishore
local.contributor.corporatename Center for Experimental Research in Computer Systems
local.relation.ispartofseries CERCS Technical Report Series
relation.isAuthorOfPublication ecee44ae-00f0-4d06-b7f7-0967613ef340
relation.isOrgUnitOfPublication 1dd858c0-be27-47fd-873d-208407cf0794
relation.isSeriesOfPublication bc21f6b3-4b86-4b92-8b66-d65d59e12c54
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