Hypothetical tape unit of correct center, hypothetical tape unit, hypothetical library system and hypothetical tape control method of secondary center

摘要

The hypothetical library system (100) the hypothetical tape unit (10), when entry demand for the data is accepted as backup processing, the data which is remembered in logical volume the library device which belongs to our device (30a and 30b) the migration processing which is housed is done to physical volume inside. Consequently, when the host (20) the hypothetical tape unit (10) notifies the export indication, the hypothetical tape unit (10), the data which is housed in the logical volume which migration processing completes through network, the secondary center side library device (30c) is exported in physical volume.