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en:group:seminars:20110518 [2011/05/10 09:45]
maatouk
en:group:seminars:20110518 [2011/05/10 09:45]
maatouk
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 ==== abstract ==== ==== abstract ====
 Two-dimensional Array Codes are a central tool to efficiently maintain data reliability and availability in commercial storage systems. Aggregating multiple storage devices into a large pool of storage requires protection from failures of individual devices. The effectiveness of Array Codes in that task is thanks to their two main features: Two-dimensional Array Codes are a central tool to efficiently maintain data reliability and availability in commercial storage systems. Aggregating multiple storage devices into a large pool of storage requires protection from failures of individual devices. The effectiveness of Array Codes in that task is thanks to their two main features:
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 1) Column based error/​erasure model -> resilience to massive failures in individual devices 1) Column based error/​erasure model -> resilience to massive failures in individual devices
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 2) Low-density encoding matrices -> low complexity encoding, decoding and updates 2) Low-density encoding matrices -> low complexity encoding, decoding and updates