| 摘要 |
<P>PROBLEM TO BE SOLVED: To move a data so as not prevent influencing reproduction and storage of the data, among a plurality of storage apparatuses. <P>SOLUTION: In a data management apparatus having two or more storage apparatuses for executing at least an operation of a writing and a reading of the data, a storage apparatus operation managing portion to manage an operation situation of the storage apparatus, and a controller for calculating a band that shows a capacity per unit time of the data to be written or read at the same time to one storage apparatus, based on the operation situation of the storage apparatus to be input from the storage apparatus operation managing portion, when a request of the operation is brought to the storage apparatus, it is decided whether a necessary band at executing the required operation has exceeded the band that can be used for the operation of the storage apparatus (S125). <P>COPYRIGHT: (C)2009,JPO&INPIT |
