Erasure coding across multiple zones

Erasure coding across multiple zones

In various embodiments, methods and systems for erasure coding data across multiple storage zones are provided. This may be accomplished by dividing a data chunk into a plurality of sub-fragments. Each of the plurality of sub-fragments is associated with a zone. Zones comprise buildings, data center...

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Hauptverfasser: GOPALAN PARIKSHIT SANTHANA, HUANG CHENG, SIMITCI HUSEYIN, YEKHANIN SERGEY, LI JIN, CALDER BRADLEY G, OGUS AARON W
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator GOPALAN PARIKSHIT SANTHANA
HUANG CHENG
SIMITCI HUSEYIN
YEKHANIN SERGEY
LI JIN
CALDER BRADLEY G
OGUS AARON W
description In various embodiments, methods and systems for erasure coding data across multiple storage zones are provided. This may be accomplished by dividing a data chunk into a plurality of sub-fragments. Each of the plurality of sub-fragments is associated with a zone. Zones comprise buildings, data centers, and geographic regions providing a storage service. A plurality of reconstruction parities is computed. Each of the plurality of reconstruction parities computed using at least one sub-fragment from the plurality of sub-fragments. The plurality of reconstruction parities comprises at least one cross-zone parity. The at least one cross-zone parity is assigned to a parity zone. The cross-zone parity provides cross-zone reconstruction of a portion of the data chunk.
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title Erasure coding across multiple zones
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