Disk storage apparatus and data storage method
AssigneeKabushiki Kaisha Toshiba
InventorMasatoshi Aoki
Life of this patent
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Abstract
According to one embodiment, a disk storage apparatus includes a disk, a detector, and a controller. The disk includes a first recording area for recording with a first track density, and a second recording area for recording with a second track density lower than the first track density. The detector is configured to detect a variation of an outside environment. The controller is configured to select a nonvolatile memory or the second recording area as a storage destination of write data transferred from a host, based on a content of the variation of the outside environment detected by the detector, and a state of capability or incapability of storage of the nonvolatile memory.
Claims16
A disk storage apparatus, comprising:
- a disk includes a first recording area for recording with a first track density, and a second recording area for recording with a second track density lower than the first track density;
- a nonvolatile memory configured to be one of storage destinations of write data transferred from a host;
- a detector configured to detect a variation of an outside environment;
- and
- a controller configured to select the nonvolatile memory or the second recording area as the one of storage destinations of the write data, based on a content of the variation of the outside environment detected by the detector, and a state of capability or incapability for storage of the nonvolatile memory.
A method of storing data in a disk storage apparatus, which comprises a disk including a first recording area for recording with a first track density, and a second recording area for recording with a second track density lower than the first track density, a nonvolatile memory configured to be one of storage destinations of write data transferred from a host, and a detector configured to detect a variation of an outside environment, the method comprising:
- receiving write data transferred from a host;
- and
- selecting the nonvolatile memory or the second recording area as the one of storage destinations of the write data, based on a content of the variation of the outside environment detected by the detector, and a state of capability or incapability of storage of the nonvolatile memory.
Dependencies are inferred from the claim text.