Using a snapshot as a data source

G - Physics – 06 – F

Patent

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G06F 12/16 (2006.01)

Patent

CA 2729075

A system and method for using a snapshot as a data source is described. In some cases, the system stores a snapshot and an associated data structure or index to storage media to create a secondary copy of a volume of data. In some cases, the associated index includes application specific data about a file system or other application that created the data to identify the location of the data. The associated index may include three entries, and may be used to facilitate the recovery of data via the snapshot.

L'invention porte sur un système et un procédé d'utilisation d'une copie instantanée en tant que source de données. Dans certains cas, le système stocke une copie instantanée et une structure de données associée ou un index associé sur des supports de stockage pour créer une copie secondaire d'un volume de données. Dans certains cas, l'index associé comprend des données spécifiques d'application concernant un système de fichiers ou autre application qui a créé les données pour identifier l'emplacement des données. L'index associé peut comprendre trois entrées, et peut être utilisé pour faciliter la récupération de données par l'intermédiaire de la copie instantanée.

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