Method of ensuring the integrity of a command instruction exchanged between a host device and an ATA device

摘要

The present invention provides an improved method of ensuring the integrity of command instructions exchanged between a host and an ATA device of an array of one or more ATA devices. The invention discloses a method of error detection for transfers of both control information and command information. The invention broadly includes the steps of: writing control information to one or more locations on the selected ATA device; reading the information stored at the corresponding locations; and comparing the control information to the information stored. Other aspects of the invention include writing command information to the ATA device; reading the information stored at the location to which the command information is written; and comparing the command information to the information stored. Other aspects of the invention terminate the command instruction if any compared information is not equal; or if the command instruction is not completed within a preset time interval.