METHOD AND SYSTEM FOR ACCESSING AUXILIARY DATA IN POWER-EFFICIENT HIGH-CAPACITY SCALABLE STORAGE SYSTEM

METHOD AND SYSTEM FOR ACCESSING AUXILIARY DATA IN POWER-EFFICIENT HIGH-CAPACITY SCALABLE STORAGE SYSTEM

A method for preparing data units for access in a data storage system is disclosed. The data storage system includes multiple storage devices having data units. All the storage devices of the data storage system are not powered on at the same time. The method includes preparing and storing the auxil...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: COUSINS, JEFFREY, LE, KIM, B, GUHA, ALOKE
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
INFORMATION STORAGE
PHYSICS
STATIC STORES
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Beschreibung
Zusammenfassung:A method for preparing data units for access in a data storage system is disclosed. The data storage system includes multiple storage devices having data units. All the storage devices of the data storage system are not powered on at the same time. The method includes preparing and storing the auxiliary data. The auxiliary data is prepared for a data unit on a storage device that will be powered off during an access request of the data unit. The auxiliary data is stored on the storage devices so that the auxiliary data is likely to be available on a powered-on storage device when the data unit is the subject of an access request.