Abstract: A system and method for verifying an identifier of a command. The method includes receiving an incoming command and sending a first alert to auto-logging hardware, wherein the auto-logging hardware sends a fetch instruction in response to receiving the first alert; retrieving an identifier of the incoming command in response to the fetch instruction and sending a second alert to the auto-logging hardware, wherein the auto-logging hardware sends a search instruction in response to receiving the second alert; and searching for the identifier of the incoming command in a table in response to the search instruction, the table storing identifiers previously assigned to other commands, wherein the incoming command is logged into the search table and marked as a searched command after the search for the first identifier in the table has completed successfully.

Abstract: An execution queue stores a write command from the host in response to issuance of the write command from the host, and is removed from the execution queue in response to a signal indicating that data designated by the write command has been written to the hard disk. A holding queue stores the write command removed from the execution queue. In response to the command being stored in the holding queue, a request is issued for an acknowledgment from the host. The write command is removed from the holding queue in response to the acknowledgment being received from the host. An outgoing queue stores the write command removed from the holding queue for deletion. The queues are controlled by queue management hardware, the request is issued by the queue management hardware, and the signal and acknowledgment are received by the queue management hardware.

Abstract: A protective article of outer-clothing (1,5) characterized in that the article: a) does not enshroud the head of the wearer; b} is not equipped with means for sensing and processing any electrical variations that the wearer's body produces; and c) incorporates an electricity conductive layer (12,14,16,17) which is selected to be of sufficiently low resistance that if, in use, prongs of a so-called stun gun are pressed against the article of clothing or located in proximity to the article and the gun is fired, the conductive layer (12,14,16,17) electrically interferes with the charge applied between the gun's prongs.