Abstract: A cluster computer system includes a plurality of independently operated computer systems located in close proximity to each other. Each system includes a system bus, a memory, and a set of local peripheral devices which connect in common to the system bus. The computer systems are interconnected for transferring messages to each other through the channels of a high speed cluster controller which connect to the system buses. Each system further includes a cluster driver which transfers the messages between the memory of the computer system and the corresponding cluster controller channel when the system is configured to operate in a cluster mode of operation. User application programs issue monitor calls to access files contained on a peripheral device(s). The fast remote file access (FRFA) facility included in each system upon detecting that the peripheral device is not locally attached, packages the monitor call and information identifying the user application into a message.

Abstract: A locking mechanism for an actuator prevents the unauthorized operation of the actuator and also permits a viewer to determine whether the actuator is in a locked open, locked closed or unlocked position. The invention utilizes a clear cover guard which is positioned and locked on an actuator body which is attached to a housing. The actuator body comprises threaded bores which permit a bolt to be inserted into the actuator body until it contacts an integral locking cam and driver arm rotatably disposed within the actuator body. The bolt contacts the locking cam in order to selectively lock the integral locking cam and driver arm in a desired position.

Abstract: A newel post fastener and rail attachment consisting of a bolt or screw perpendicularly oriented and fused to the center of a metal disk, with holes encircling its periphery, allows the joining of newel posts to the floor or stair tread and joining of railing to newel posts such that the fastener means is not visible after connection of the members. In the manner of fastening the newel post to the floor, the need for additional millwork to conceal the means of fastening is obviated.