DATA STORAGE DEVICE USING PREDEFINED DATA SEGMENTS FOR LOGICAL ADDRESS MAPPING

A data storage device configured to access a magnetic tape comprising a plurality of data tracks is disclosed, wherein the data storage device comprises at least one head configured to access the magnetic tape. A mapping table is generated having a predetermined number of segment entries per data tr...

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Bibliographic Details
Main Author Horn, Robert L
Format Patent
LanguageEnglish
Published 17.11.2022
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:A data storage device configured to access a magnetic tape comprising a plurality of data tracks is disclosed, wherein the data storage device comprises at least one head configured to access the magnetic tape. A mapping table is generated having a predetermined number of segment entries per data track, wherein each segment entry corresponds to a data segment of the data track, each segment entry comprises a first logical address corresponding to a first logical data block stored in the corresponding data segment, and at least one of the data segments stores multiple logical data blocks. A target segment entry in the mapping table corresponding to a logical address of a read command is located, and the head is positioned at a beginning of a target data segment of a target data track corresponding to the target segment entry in order to execute the read command.
Bibliography:Application Number: US202117317018