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AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorsYu Chen, Kenichiro Oozeki
Estimating the term…
In a magnetic disk apparatus according to an embodiment, a power supply circuit generates second power from first power supplied by an external power supply, and generates third power when the first power is cut off. The third power is generated based on regenerative energy generated by stoppage of a motor. A controller writes data received from a host device to a magnetic disk via a cache area by the second power while the first power is supplied, and executes a backup process when the first power is cut off. The backup process is executed by disabling communication with the host device and saving content of the cache area to the first memory by the third power. A monitoring circuit keeps connection with the external power supply even when the first power is cut off. The controller enables communication with the host device when the first power is restored.
A magnetic disk apparatus comprising:
A control method implemented by a magnetic disk apparatus, the magnetic disk apparatus including one or more magnetic disks, a motor serving to rotate the one or more magnetic disks, a power supply circuit serving to generate second power from first power supplied by an external power supply and generate third power when supply of the first power is cut off, the third power being generated based on regenerative energy generated by stoppage of the motor, a first memory being non-volatile, and a second memory being volatile and including a cache area, the control method comprising:
Dependencies are inferred from the claim text.