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Virtual tape library device, virtual tape library system, and method for writing data to a virtual tape
Virtual tape library device, virtual tape library system, and method for writing data to a virtual tape
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机译:虚拟磁带库设备,虚拟磁带库系统以及用于将数据写入虚拟磁带的方法
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摘要
The present invention aims to protect data by using WORM (Write Once Read Many) features. On receiving an instruction to write data to a virtual tape, from a host computer 2 via an FC interface 11, a VTL controller 10 reads out WORM information and access information each corresponding to the virtual tape for which the instruction was made, from a tape management table 231 and a WORM management table 232, respectively. If the WORM setting is not made for the WORM information that was read out, or if the access information indicates writing data is allowed, then an instruction is given to a disc device 30 to write data to a magnetic disc that corresponds to the virtual tape for which the write instruction was made.
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