TECHNIQUES FOR DETERMINING THE EXTENT OF DATA LOSS AS A RESULT OF A DATA STORAGE SYSTEM FAILURE

TECHNIQUES FOR DETERMINING THE EXTENT OF DATA LOSS AS A RESULT OF A DATA STORAGE SYSTEM FAILURE

A technique for operating a data storage system includes generating information that identifies data that is currently stored in a write cache of the data storage system. The information is stored in a data structure associated with the data storage system. In response to a failure of the data stora...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Messing, Deborah A, Moore, Christopher B, Goldberg, Itzhack, MCGREGOR, HARRY R
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:A technique for operating a data storage system includes generating information that identifies data that is currently stored in a write cache of the data storage system. The information is stored in a data structure associated with the data storage system. In response to a failure of the data storage system, the information in the data structure is accessed to identify the data that was lost in the failure.