CONTROL APPARATUS, STORAGE DEVICE, AND TIMEOUT-POSSIBILITY NOTIFYING METHOD

CONTROL APPARATUS, STORAGE DEVICE, AND TIMEOUT-POSSIBILITY NOTIFYING METHOD

A magnetic disk device performs test write on a test cylinder to check the state of each head before system information is stored in disks. The magnetic disk device then determines the state of each head based on the test write results stored in a test-write-result table. When a head is defective, t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KARAKAWA YUJI, MASUYAMA HIDEKAZU
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Beschreibung
Zusammenfassung:A magnetic disk device performs test write on a test cylinder to check the state of each head before system information is stored in disks. The magnetic disk device then determines the state of each head based on the test write results stored in a test-write-result table. When a head is defective, the magnetic disk device notifies a host of the possibility of the occurrence of a timeout as a fault prediction.