Apparatus and method for data backup

A backup control apparatus for periodic data backup, in a virtualized storage system having a point-in-time copy function operable to copy first data into a cascade, comprises a storage targeting component for selecting a target virtual disk for one of a full copy or an incremental copy of the first...

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Bibliographische Detailangaben
Hauptverfasser: FUENTE CARLOS FRANCISCO, SCALES WILLIAM JAMES, BEEKEN CHRISTOPHER BARRY, JEWELL COLIN ROBERT
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:A backup control apparatus for periodic data backup, in a virtualized storage system having a point-in-time copy function operable to copy first data into a cascade, comprises a storage targeting component for selecting a target virtual disk for one of a full copy or an incremental copy of the first data; a periodic backup component for triggering a periodic point-in-time copy of the first data to a virtual disk in the cascade; a testing component for testing a status of the full copy, the incremental copy and the periodic point-in-time copy; and a cascade splitting component responsive to the status for splitting the cascade to remove a dependency relationship of one or more of the full copy, the incremental copy and the periodic point-in-time copy on the first data.