FlexFS: transparent resilience for GRID storage resources

Konstantinos Tsakalozos, Vassil Kriakov, Alex Delis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Existing GRID infrastructures rely on explicit user instructions in order to replicate files for the purposes of resiliency. This human-intensive process is inefficient, error prone and, more importantly, makes file replication in GRIDs a cumbersome task. To address this problem, we introduce FiexFS - a fully automated file-system framework that seamlessly plugs into existing GRID structures providing automated file replication and transparent-to-user resilience. FiexFS breaks apart files into blocks and injects resilient information into these blocks through the use of Forward Erasure Correction codes. FiexFS employs a number of methods that facilitate the automated storage and efficient retrieval of the blocks in order to provide I/O throughput similar to that of local hard disks, all in the face of ever-changing utilization and availability of the GRID resources. Compared to currently available GRID replication schemes, FiexFS attains 15% to 230% higher throughput, both for reading and writing files.

Original languageEnglish (US)
Title of host publicationProceedings - 2009 International Symposium on Autonomous Decentralized Systems, ISADS 2009
Pages491-498
Number of pages8
DOIs
StatePublished - 2009
Event2009 International Symposium on Autonomous Decentralized Systems, ISADS 2009 - Athens, Greece
Duration: Mar 23 2009Mar 25 2009

Publication series

NameProceedings - 2009 International Symposium on Autonomous Decentralized Systems, ISADS 2009

Conference

Conference2009 International Symposium on Autonomous Decentralized Systems, ISADS 2009
CountryGreece
CityAthens
Period3/23/093/25/09

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Software

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