Abstract: A busy disk evaluation system includes a busy disk evaluation module and a control module. The busy disk evaluation module is configured to perform a busy disk evaluation operation in which it processes access request statistics relating to access requests directed to a server, the server including a plurality of disk storage units, respective access requests requesting access to respective ones of the disk storage units, to identify which, if any of the disk storage units is busy. The busy disk evaluation module is configured to determine whether a disk storage unit is busy in relation to a ratio between the number of access requests requesting access to the disk storage unit per unit time exceeds a selected access request per unit time threshold in relation to a total number of access requests and a selected ratio threshold. The control module is configured to control the busy disk evaluation module.

Abstract: An arrangement is disclosed for use in connection with a host computer connected to a mass storage subsystem, the mass storage subsystem storing information for use in connection with processing of at least one program by the host computer. The arrangement comprises a program input/output interface, a mass storage subsystem interface and a file system control. The program input/output interface is configured to receive program input/output read and write requests from a program, each program input/output read and write request initiating an input/output operation in connection with information stored on a mass storage subsystem. The mass storage subsystem interface is configured to facilitate communications with the mass storage subsystem, including transferring a storage subsystem input/output read and write request thereto and receiving information therefrom.

Abstract: A busy disk evaluation system includes a busy disk evaluation module and a control module. The busy disk evaluation module is configured to perform a busy disk evaluation operation in which it processes access request statistics relating to access requests directed to a server, the server including a plurality of disk storage units, respective access requests requesting access to respective ones of the disk storage units, to identify which, if any of the disk storage units is busy. The busy disk evaluation module is configured to determine whether a disk storage unit is busy in relation to a ratio between the number of access requests requesting access to the disk storage unit per unit time exceeds a selected access request per unit time threshold in relation to a total number of access requests and a selected ratio threshold. The control module is configured to control the busy disk evaluation module.

Abstract: A performance prediction generating system is disclosed for predicting a change in performance in connection with a server, the server having a plurality of disk storage units each for storing information, in relation to reallocating files as between two of the disk storage units. The performance prediction generating system comprises a file selector module and an access request processing module. The file selector module is configured to select a file on each of two of the disk storage units for reallocation therebetween.

Abstract: A process for controlling the formation of ceramics, achievable under ambient conditions, includes preparing a crystallization medium of a ceramic parent solution and spreading an organic monolayer of a hydrogen-bonded network on the air-liquid interface of the solution. For the formation of aragonite, the process uses an undoped calcium bicarbonate solution and a hydrogen-bonded network with a structural motif approximately matching a calcium ion distance in the a-c plane of aragonite. The aragonite product formed has a [010] axis approximately perpendicular to the monolayer. For perovskite materials, such as BSTO ceramics, the microstructure of the product is controlled by changing different functional groups of the organic monolayer which has been spread on the surface of a perovskite parent solution.