MAGNETIC DISK DEVICE AND REORDERING METHOD

MAGNETIC DISK DEVICE AND REORDERING METHOD

According to one embodiment, a magnetic disk device includes a first head which writes and reads to the first disk, a second head which writes data and reads data to the second disk, a first actuator including the first head, a second actuator including the second head, and a controller which perfor...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: Hara, Takeyori
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Beschreibung
Zusammenfassung:According to one embodiment, a magnetic disk device includes a first head which writes and reads to the first disk, a second head which writes data and reads data to the second disk, a first actuator including the first head, a second actuator including the second head, and a controller which performs a first reordering process for a command scored in a first queue corresponding to the first actuator and performs a second reordering process for a command stored in a second queue corresponding to the second actuator, wherein the controller selects a first command to be executed next by the first actuator based on current and future operating states of the second actuator, and executes the first command.