ONLINE CONVERSION OF STORAGE LAYOUT

A virtual disk is instantiated as a representation of a storage volume. The virtual disk is configured with metadata corresponding to the storage volume. A storage stack is instantiated that is operable to provide an active I/O path to the storage volume. The storage stack is modified by adding an a...

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Main Authors SHANKAR, Vinod, MEHRA, Karan, HOPE, Taylor
Format Patent
LanguageEnglish
French
Published 05.11.2020
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Abstract A virtual disk is instantiated as a representation of a storage volume. The virtual disk is configured with metadata corresponding to the storage volume. A storage stack is instantiated that is operable to provide an active I/O path to the storage volume. The storage stack is modified by adding an alternative I/O path to the virtual disk. The alternative I/O path includes a layout driver configured to manage a converted storage layout for the storage volume. The storage volume is encapsulated to the virtual disk. The active I/O path is closed and the alternative I/O path is enabled for I/O requests to the virtual disk. The storage layout of the storage device is converted without taking the storage volume offline. Un disque virtuel est instancié sous la forme d'une représentation d'un volume de stockage. Le disque virtuel est configuré avec des métadonnées correspondant au volume de stockage. Une pile de stockage est instanciée, laquelle est utilisable pour fournir un chemin d'E/S actif jusqu'au volume de stockage. La pile de stockage est modifiée par ajout d'un autre chemin d'E/S jusqu'au disque virtuel. L'autre chemin d'E/S comprend un pilote de disposition configuré pour gérer une disposition de stockage convertie pour le volume de stockage. Le volume de stockage est encapsulé sur le disque virtuel. Le chemin d'E/S actif est fermé et l'autre chemin d'E/S est activé pour des requêtes d'E/S sur le disque virtuel. La disposition de stockage du dispositif de stockage est convertie sans prendre le volume de stockage hors ligne.
AbstractList A virtual disk is instantiated as a representation of a storage volume. The virtual disk is configured with metadata corresponding to the storage volume. A storage stack is instantiated that is operable to provide an active I/O path to the storage volume. The storage stack is modified by adding an alternative I/O path to the virtual disk. The alternative I/O path includes a layout driver configured to manage a converted storage layout for the storage volume. The storage volume is encapsulated to the virtual disk. The active I/O path is closed and the alternative I/O path is enabled for I/O requests to the virtual disk. The storage layout of the storage device is converted without taking the storage volume offline. Un disque virtuel est instancié sous la forme d'une représentation d'un volume de stockage. Le disque virtuel est configuré avec des métadonnées correspondant au volume de stockage. Une pile de stockage est instanciée, laquelle est utilisable pour fournir un chemin d'E/S actif jusqu'au volume de stockage. La pile de stockage est modifiée par ajout d'un autre chemin d'E/S jusqu'au disque virtuel. L'autre chemin d'E/S comprend un pilote de disposition configuré pour gérer une disposition de stockage convertie pour le volume de stockage. Le volume de stockage est encapsulé sur le disque virtuel. Le chemin d'E/S actif est fermé et l'autre chemin d'E/S est activé pour des requêtes d'E/S sur le disque virtuel. La disposition de stockage du dispositif de stockage est convertie sans prendre le volume de stockage hors ligne.
Author HOPE, Taylor
MEHRA, Karan
SHANKAR, Vinod
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Snippet A virtual disk is instantiated as a representation of a storage volume. The virtual disk is configured with metadata corresponding to the storage volume. A...
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SubjectTerms CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
Title ONLINE CONVERSION OF STORAGE LAYOUT
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