Disk control apparatus, disk control method, and computer product
View Patent ↗A disk control apparatus controls a disk driving unit that performs read/write of data with a head. A vibration detecting unit detects a vibration of the disk driving unit. A disk control unit controls the disk driving unit based on the detected vibration.
1. A disk control apparatus that controls a disk driving unit that performs read/write of data with a head, the disk control apparatus comprising:
a vibration detecting unit that detects a vibration of the disk driving unit using a rate of write fault occurrence, the rate of write fault occurrence being obtained from at least one of a shock sensor and the position signal; and
a disk control unit that controls the disk driving unit to switch a sensitivity of the shock sensor based on the detected vibration.
2. The disk control apparatus according to claim 1 , wherein
the disk control unit tightens, when a predetermined vibration is detected, a write off track slice that is a condition for stopping the write of data in a disk.
3. The disk control apparatus according to claim 2 , wherein
the disk control unit tightens the write off track slice based on at least one of a characteristic, a temperature, and a customization level of the head.
4. The disk control apparatus according to claim 1 , wherein
the disk control unit rejects, when the vibration is detected, a seek error signal, and maintains a settling state.
5. A method of controlling a disk driving unit that performs read/write of data with a head, the method comprising:
detecting a vibration of the disk driving unit using a rate of write fault occurrence, the rate of write fault occurrence being obtained from at least one of a shock sensor and the position signal; and
controlling the disk driving unit to switch a sensitivity of the shock sensor based on the detected vibration.
6. A computer-readable recording medium that stores a computer program for controlling a disk driving unit that performs read/write of data with a head, wherein
the computer program causes a computer to execute:
detecting a vibration of the disk driving unit using a rate of write fault occurrence, the rate of write fault occurrence being obtained from at least one of a shock sensor and the position signal; and
controlling the disk driving unit based on the detected vibration to switch a sensitivity of the shock sensor.
7. A disk control apparatus that controls a disk driving unit that performs read/write of data with a head, the disk control apparatus comprising:
a vibration detecting unit that detects a vibration of the disk driving unit: and
a disk control unit that controls the disk driving unit based on the detected vibration,
wherein the disk control unit rejects, when the vibration is detected, a seek error signal, and maintains a settling state.
8. The disk control apparatus according to claim 7 , wherein
the vibration detecting unit detects the vibration using a position signal indicating a position of the head.
9. The disk control apparatus according to claim 8 , wherein
the vibration detecting unit detects the vibration by filtering the position signal.
10. The disk control apparatus according to claim 7 , wherein
the vibration detecting unit detects the vibration using a rate of write fault occurrence.
11. The disk control apparatus according to claim 10 , wherein
the rate of write fault occurrence is obtained from at least one of a shock sensor and the position signal.
12. The disk control apparatus according to claim 11 , wherein
the disk control unit controls the disk driving unit to switch a sensitivity of the shock sensor based on the detected vibration.
13. The disk control apparatus according to claim 7 , wherein
the disk control unit tightens, when a predetermined vibration is detected, a write off track slice that is a condition for stopping the write of data in a disk.
14. The disk control apparatus according to claim 13 , wherein
the disk control unit tightens the write off track slice based on at least one of a characteristic, a temperature, and a customization level of the head.