| 摘要 |
PURPOSE:To quickly select products and to perform the copy processing by generating jobs whose number corresponds to the number of volumes to execute plural jobs in parallel is products to be used are selected and are stored on another secondary storage mediums when a product group is stored on the secondary storage medium of plural volumes. CONSTITUTION:When products B, D, F, and H should be selected in case, for example, eight products A-H are divided into four volumes and are stored on the secondary storage mediums, a job 1 to select the product B from a volume 11, a job 2 to select the product D from a volume 12, a job 3 to select the product F from a volume 13, and a job 4 to select the product H from a volume 14 are generated. They are executed as four 4 jobs independent of one another to process execution of jobs in parallel. Since selection and copy processings are performed in parallel in this manner, much time is not spent in selection and copy processings even if the number of volumes is increased.
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