STORAGE SYSTEM UTILIZING INDEPENDENT ERASURE CODES

STORAGE SYSTEM UTILIZING INDEPENDENT ERASURE CODES

A method for proactively rebuilding user data in a plurality of storage nodes of a storage cluster is provided. The method includes distributing user data and metadata throughout the plurality of storage nodes such that the plurality of storage nodes can read the user data, using erasure coding, des...

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Hauptverfasser: HAYES, JOHN, LEE, ROBERT, OSTROVSKY, IGOR, ROBINSON, JOSHUA, COLGROVE, JOHN
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator HAYES, JOHN
LEE, ROBERT
OSTROVSKY, IGOR
ROBINSON, JOSHUA
COLGROVE, JOHN
description A method for proactively rebuilding user data in a plurality of storage nodes of a storage cluster is provided. The method includes distributing user data and metadata throughout the plurality of storage nodes such that the plurality of storage nodes can read the user data, using erasure coding, despite loss of two of the storage nodes. The method includes determining that one of the storage nodes is unreachable and determining to rebuild the user data for the one of the storage nodes that is unreachable. The method includes reading the user data across a remainder of the plurality of storage nodes, using the erasure coding and writing the user data across the remainder of the plurality of storage nodes, using the erasure coding. A plurality of storage nodes within a single chassis that can proactively rebuild the user data stored within the storage nodes is also provided.
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title STORAGE SYSTEM UTILIZING INDEPENDENT ERASURE CODES
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