OFFLOADING ERROR PROCESSING TO RAID ARRAY STORAGE ENCLOSURE

OFFLOADING ERROR PROCESSING TO RAID ARRAY STORAGE ENCLOSURE

A storage system comprises a plurality of enclosures and a storage controller. Each enclosure comprises at least one processing device and a plurality of drives configured in accordance with a redundant array of independent disks (RAID) arrangement. The storage controller obtains an input-output req...

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Hauptverfasser: Hadav, Aric, Schneider, Zvi, Alkalay, Amitai, Glimcher, Boris
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator Hadav, Aric
Schneider, Zvi
Alkalay, Amitai
Glimcher, Boris
description A storage system comprises a plurality of enclosures and a storage controller. Each enclosure comprises at least one processing device and a plurality of drives configured in accordance with a redundant array of independent disks (RAID) arrangement. The storage controller obtains an input-output request to read a target data page and issues a command to the at least one processing device of a given enclosure. Responsive to receiving the command, the at least one processing device of the given enclosure obtains data pages associated with a given stripe from the plurality of drives of the given enclosure. The at least one processing device rebuilds the given stripe based at least in part on the obtained data pages, obtains the target data page from the rebuilt given stripe and provides the obtained target data page to the storage controller.
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title OFFLOADING ERROR PROCESSING TO RAID ARRAY STORAGE ENCLOSURE
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