| 摘要 |
Each of data bands of a magnetic tape includes a plurality of wraps as data tracks. In the read/write test, a predetermined test length is set to every wrap and test patterns are written to the test length portion, and the patterns are read so as to verify whether or not there is trouble to the drive or the tape. While it takes time to switch a magnetic head among the wraps on testing all the wraps, the time depends on order of switching. In the present invention, the order in which the magnetic head switches the wraps for reading or writing, that is, a wrap sequence, is selected to be different from the wrap sequence in an actual active state. The wrap sequence in the actual active state has been selected based on a factor such as writing performance of the tape, which has not been suited to the read/write test.
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