Abstract: A batch job multiplex processing method which solves the problem that a system which performs multiplex processing including parallel processing on plural nodes cannot cope with a sudden increase in the volume of data to be batch-processed using a predetermined value of multiplicity, for example, in securities trading in which the number of transactions may suddenly increase on a particular day. The method dynamically determines the value of multiplicity of processing including parallel processing in execution of a batch job on plural nodes. More specifically, in the method, multiplicity is determined depending on the node status (node performance and workload) and the status of an input file for the batch job.

Abstract: It is an object of the present invention to use the resources of various sites in an effective manner. The first site has a first DB access part in use. The second site has a second DB access part in use in addition to a first DB access part for standby corresponding to the first DB access part in use. The second DB access part in use writes data into a second storage device that is assigned to the second DB access part itself. The inter-site monitoring server monitors the first DB access part in use and the second DB access part, and in cases where it is detected that the first DB access part in use has gone down, the inter-site monitoring server switches the first DB access part for standby to the DB access part in use.

Abstract: It is an object of the present invention to use the resources of various sites in an effective manner. The first site has a first DB access part in use. The second site has a second DB access part in use in addition to a first DB access part for standby corresponding to the first DB access part in use. The second DB access part in use writes data into a second storage device that is assigned to the second DB access part itself. The inter-site monitoring server monitors the first DB access part in use and the second DB access part, and in cases where it is detected that the first DB access part in use has gone down, the inter-site monitoring server switches the first DB access part for standby to the DB access part in use.

Abstract: An oxygen enriched air producing apparatus includes a casing, at least one rotor rotatably disposed in the casing to thereby define a space between the casing and the rotor, and a magnetic field generating device for generating a magnetic flux extending axially within the space between the casing and the rotor. An oxygen enriched air outlet and a nitrogen enriched air outlet are formed in the casing so as to be spaced from each other in an axial direction of the space.