System and method for improving disk drive performance during high frequency vibration conditions

Described are a system and method for improving the performance of a disk drive in a data storage system by enabling the disk drive to "ride through" events that can induce disk drive errors. In response to an error message received from a disk drive, a disk director temporarily places the...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: BERENSON JEFFREY R, DE LUCIA THOMAS M, FRENCH F. WILLIAM, GARVEY MICHAEL D, IVES STEPHEN RICHARD
Format: Patent
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Described are a system and method for improving the performance of a disk drive in a data storage system by enabling the disk drive to "ride through" events that can induce disk drive errors. In response to an error message received from a disk drive, a disk director temporarily places the disk drive into a wait state. While in the wait state, the disk drive is prevented from shutting down, despite the current error and any subsequent errors that the disk drive may experience. The disk drive may continue to service I/O requests while in the wait state, with the disk director monitoring the disk drive performance. After the disk drive exits the wait state, the disk director can determine from the monitored results whether to shut down the disk drive or to permit the disk drive to return to normal operation.