MAGNETIC DISK PROTECTION MECHANISM, COMPUTER SYSTEM COMPRISING PROTECTION MECHANISM, PROTECTION METHOD FOR MAGNETIC DISK, AND PROGRAM FOR PROTECTION METHOD
First Claim
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1. A mechanical transport device comprising:
- a system for transport; and
a hard disk drive data storage system attached to said transport system, wherein the hard disk drive data storage system comprises;
a magnetic recording disk to record data;
a head to read or write the data to or from the disk; and
a sensor designed to sense a shock condition,wherein the hard disk drive data storage system performs at least one of the following operations upon detecting a shock condition;
dividing an access request to said magnetic disk device into access requests with a smaller data size per access, andcausing the head to escape from the disk, wherein if a shock actually occurs after the head has been instructed to escape, determining whether or not the magnetic head has escaped before the occurrence of the shock.
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Abstract
A mechanical transport device includes a system for transport; and a hard disk drive attached to the system. The hard disk drive comprises a magnetic recording disk to record data, a head to read or write the data to or from the disk, and a drop sensor designed to sense a shock condition. The system for transport may be a vehicle such as a car. Additional systems are also presented
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Citations
22 Claims
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1. A mechanical transport device comprising:
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a system for transport; and a hard disk drive data storage system attached to said transport system, wherein the hard disk drive data storage system comprises; a magnetic recording disk to record data; a head to read or write the data to or from the disk; and a sensor designed to sense a shock condition, wherein the hard disk drive data storage system performs at least one of the following operations upon detecting a shock condition; dividing an access request to said magnetic disk device into access requests with a smaller data size per access, and causing the head to escape from the disk, wherein if a shock actually occurs after the head has been instructed to escape, determining whether or not the magnetic head has escaped before the occurrence of the shock. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18)
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11. A system for reading or writing data comprising:
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a hard disk drive including; a magnetic recording disk to record data; a head to read or write the data to or from the disk; and a shock sensor designed to sense a shock condition; and wherein the shock sensor senses the shock condition based on a shock value being over a predetermined threshold level, wherein the shock value is determined by combining values of a linear accelerometer and an angular speed sensor.
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19. A system for reading or writing data comprising:
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a hard disk drive including; a magnetic recording disk to record data; a head to read or write the data to or from the disk; and a shock sensor designed to sense a shock condition; and wherein the shock sensor senses the shock condition based on a shock value being over an adaptable threshold level set by a user, wherein the shock value is determined by combining values of a linear accelerometer and an angular speed sensor.
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20. A system for reading or writing data comprising:
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a hard disk drive including; a magnetic recording disk to record data; a head to read or write the data to or from the disk; and a shock sensor designed to sense a shock condition; and wherein the system performs a diagnosis on the hard disk drive after sensing a shock condition. - View Dependent Claims (21, 22)
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Specification