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AssigneeInternational Business Machines Corporation
InventorsRobert Beverley Basham, Leonard George Jesionowski
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A converter is utilized with at least one implicit addressing sequential media device to simulate explicit addressing sequential media device performance from the perspective of host applications. Responsive to receiving explicit addressing read/write commands from the host application, the converter converts the explicit addressing read/write commands into implicit addressing read/write commands and passes the implicit addressing read/write commands through to the device. Optionally, responsive to device capability queries from a host application, the converter reports that the device utilizes explicit addressing. As another option, responsive to receiving commands other than explicit addressing read/write commands from the application host, the converter examines the commands to monitor sequential media address, and relays the commands to the device substantially free of any modification.
A method for interfacing an implicit addressing sequential media device and at least one host compatible with explicit addressing sequential media devices, comprising operations of, responsive to host issuance of explicit addressing media access commands, performing operations comprising converting content of the explicit addressing media access commands to form implicit addressing media access commands and passing the implicit addressing media access commands to the implicit addressing sequential media device.
A method of configuring a storage subsystem comprising operations of installing a converter between at least one implicit addressing sequential media device and at least one host configured to communicate with explicit addressing sequential media devices, the converter being programmed to review content of explicit addressing media access commands from the host, convert said content into implicit addressing media access commands, and forward the converted content for execution by the device.
A signal-bearing medium tangibly embodying a program of machine-readable instructions executable by a digital processing apparatus to perform operations for interfacing an implicit addressing sequential media device and at least one host compatible with explicit addressing sequential media devices, the operations comprising, responsive to host issuance of explicit addressing media access commands, performing operations comprising converting content of the explicit addressing media access commands to form implicit addressing media access commands and passing the implicit addressing media access commands to the implicit addressing sequential media device.
A logic circuit of multiple interconnected electrically conductive elements configured to perform operations for interfacing an implicit addressing sequential media device and at least one host compatible with explicit addressing sequential media devices, the operations comprising, responsive to host issuance of explicit addressing media access commands, performing operations comprising converting content of the explicit addressing media access commands to form implicit addressing media access commands and passing the implicit addressing media access commands to the implicit addressing sequential media device.
A sequential storage media command converter for use between at least one host and at least one implicit addressing sequential media device, comprising:
A sequential storage media command converter for use between at least one host and at least one implicit addressing sequential media device, comprising:
Dependencies are inferred from the claim text.