Patent ID: 7382566

Claim:
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, and analyzing a history of output from the sensor for predicting a shock, 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, wherein the hard disk drive data storage system further comprises: an information acquisition mechanism for acquiring current information about an environmental change of a magnetic disk device; a shock prediction mechanism for analyzing the current information acquired by said information acquisition mechanism together with a history thereof occurring immediately prior to the current information, and for determining a status of where said magnetic disk device is used, so as to perform a shock prediction; and a control mechanism for controlling operations of said magnetic disk device including a magnetic head escape operation based on a prediction result by said shock prediction mechanism, wherein said information acquisition mechanism is coupled to a housing in which the magnetic disk device is housed, wherein if said magnetic head has escaped, said control mechanism holds a new access request to the magnetic disk device in an internal queue instead of realizing the access request until said shock prediction mechanism determines that said magnetic disk device is stable.