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Reordering access to reduce total seek time on tape media
Reordering access to reduce total seek time on tape media
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机译:重新排序访问权限以减少磁带介质上的总查找时间
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摘要
A method, system and program are disclosed for reordering User Data Segment (UDS) lists to reduce seek times when accessing data stored on tape media. A host application sends a list of UDSs to a target tape drive and requests the tape drive to reorder the list to improve performance. An ordered list of target User data Segments to retrieve from a target tape media is received. Information about the location of each UDS on the target media is processed to determine its corresponding physical position on the tape media. The resulting physical positions are then processed to generate a reordered UDS list, where the order of the User Data Segments is reordered according to their physical location on the target tape media. The reordered list of User Data Segments is then used to perform seek, reposition and read operations to read User Data Segments from the tape media.
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