Techniques for maintaining cache coherence by atomically processing groups of storage commands

Techniques for maintaining cache coherence by atomically processing groups of storage commands

Improved techniques for maintaining cache coherence in a consistent state are provided. These techniques implement a data storage system using a journaled mirrored cache that ensures that storage operations making up certain transactions be performed atomically, so that a system failure does not res...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Schaffer Gregory S, Seibel Christopher A, Tolvanen Peter E, Spang, IV Henry Austin, Armangau Philippe
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:Improved techniques for maintaining cache coherence in a consistent state are provided. These techniques implement a data storage system using a journaled mirrored cache that ensures that storage operations making up certain transactions be performed atomically, so that a system failure does not result in data loss. The improved techniques also allow for efficient communication of mirroring information.