Abstract: Pairs are formed from a plurality of dispersed volumes and copying between the volumes is conducted by a series of remote operations from a management server. A management server 10 instructs the generation of configuration setting files 23, 30 to host computers 20, 30 selected so as to form copy pairs. If the configuration setting files are generated by host agents 21, 31, the management server 10 instructs copy start to a host computer 20 having a primary volume. The host agent 21 generates a prescribed command via a copy pair control module 22 and causes a storage subsystem 40 to execute copying between the volumes. When copying is completed, the management server 10 acquires the newest storage configuration information from the storage subsystem 40 and updates configuration information DB12.

Abstract: A multi dimensional database information table, a member management table, and a dimension information management table that hold the information for correlating the data of a plurality of multi dimensional databases are produced when the multi dimensional database is produced. When a user requests the relational data of a certain data while the user is searching a certain multi dimensional database on an application, the dimension information table and the multi dimensional database information table receive an access, and the multi dimensional database name in which the relational data exists, the measure dimension name, and the measure member are obtained and sent to the application as the relational data item of the data corresponding to the relational data request requested by the user.

Abstract: A data warehouse system includes a first database configured to receive first data from a first client, a data warehouse configured to receive second data corresponding to the first data from the first database after an interval to enable a second client to access the second data, and a dynamic database configured to receive third data corresponding to the first data from the first database prior to receipt of the second data by the data warehouse in order to provide the second client with access to the third data prior to the availability of the second data to the second client.

Abstract: An image formation apparatus has a photoreceptor 1, a charger 2, a latent image write unit 3, a developing device 4, and a performance maintaining controller 5, wherein the performance maintaining controller 5 executes a performance maintaining initial sequence A for agitating and charging a developer G uniformly to such a degree that aggregating of the developer G in the developing device 4 is at least eliminated under the condition that the image formation apparatus is first used and also executes a performance maintaining sequence B for uniformly agitating and charging the developer G in the developing device 4 at least based on elapsed time since the immediately preceding image formation mode.

Abstract: An image formation apparatus has a photoreceptor 1, a charger 2, a latent image write unit 3, a developing device 4, and a performance maintaining controller 5, wherein the performance maintaining controller 5 executes a performance maintaining initial sequence A for agitating and charging a developer G uniformly to such a degree that aggregating of the developer G in the developing device 4 is at least eliminated under the condition that the image formation apparatus is first used and also executes a performance maintaining sequence B for uniformly agitating and charging the developer G in the developing device 4 at least based on elapsed time since the immediately preceding image formation mode.

Abstract: An image forming system wherein a predetermined monitor signal is applied to a transfer roll for estimating a resistance value of the transfer roll between one sheet of recording paper passing through the contact portion between a photosensitive drum and the transfer roll and the next sheet of recording paper being introduced into the contact portion and the transfer bias applied to the transfer roll is updated in response to the estimated resistance value. In the image forming system, if the time between one sheet of recording paper passing through the contact portion and the next sheet of recording paper being introduced into the contact portion is less than a predetermined time, updating of the transfer bias is inhibited, and further if updating of the transfer bias is inhibited successively a predetermined threshold value of the number of times or more, introduction of the next sheet of recording paper is delayed a predetermined time.