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Linear-recording device for performing optimal writing on receipt of command string of combined read and write commands method for same, and program
Linear-recording device for performing optimal writing on receipt of command string of combined read and write commands method for same, and program
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机译:用于在接收到组合的读写命令方法的命令串的情况下进行最佳写入的线性记录装置和程序
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摘要
Provided is a tape storage device having an optimal write method even when an overwrite operation is introduced during a combined read/write operation. When the overwrite position of data on a tape is upstream of the end position of write-once data on the tape, the overwrite data position is updated as the end position of the write-once data; and when the overwrite position of the data on the tape is downstream of the end position of the write-once data on the tape, the overwrite data position is updated as the end position of the write-once data in a non-volatile memory (EOD in memory). This allows the overall performance of the combined operation to be improved in the tape storage device even when an overwrite operation is introduced in a command string in which reading and once-writing from a higher-level device are combined together.
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