Oracle International Corporation

Michael James Dolbear

Jon Mark Holdman

Techniques for management of movable devices are disclosed. A system receives a request for an operation associated with a position on a rail. The system selects a component on the rail to execute the operation. The system identifies a rail segment that extends from the component's initial position to the position associated with the operation. The system requests a reservation of that rail segment. If the reservation is obtained, then the system applies electrical signals to move the component along the rails segment to the rail position associated with the operation. The system may also identify one or more other components, physical cells, etc. to reserve, in order to complete the operation.

Reservation-based management of movable components

Techniques for discovery and management of physical components are disclosed. A push notification from a physical component is received. The push notification includes an announcement that the physical component has been physically coupled with a system. Responsive to receiving the push notification, the system registers the physical component. The system receives push notifications from physical component. Based on the push notifications, the system determines an operational status of the physical component.

Discovery and management of physical components

Techniques for asynchronous management of physical components are disclosed. A request to perform an operation in a tape library, including a physical task to be performed by a component, is received. Based on the request, a message handler is initialized. The message handler executes in an execution thread. State data associated with the component is retrieved from persistent storage. Using the state data, a code object representing the component is instantiated. Using the message handler and the code object, instructions are transmitted to the component to perform the physical task. A process, executing in a different execution thread, receives a message from the component indicating completion of the physical task. Based on the message, another message handler is initialized that updates persistent storage associated with the component.

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Boulder, CO, United States of America

Michael James Dolbear