METHOD FOR CONTROLLING BACKUP AND RESTORATION, AND STORAGE SYSTEM USING THE SAME

METHOD FOR CONTROLLING BACKUP AND RESTORATION, AND STORAGE SYSTEM USING THE SAME

According to the prior art virtual file backup method, backup is performed without saving a file configuration information, so that the backup file cannot be restored as a virtual file during restoration, and the usage capacity of the disk is increased. According to the present invention, an actual...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: SUTOH ATSUSHI, SHIMADA AKIO, AGETSUMA MASAKUNI
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:According to the prior art virtual file backup method, backup is performed without saving a file configuration information, so that the backup file cannot be restored as a virtual file during restoration, and the usage capacity of the disk is increased. According to the present invention, an actual data managed by a virtual file, an actual data managed by one or more element files and a configuration information of the virtual file are respectively stored during backup, wherein during restoration, the virtual file is restored based on the configuration information of the virtual file.