Information memory apparatus and library apparatus using a single magnetic tape shared with a plurality of tasks
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United States of America Patent
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Aug 17, 1999
Grant Date -
N/A
app pub date -
May 31, 1996
filing date -
Dec 8, 1995
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An information memory apparatus which has a single magnetic tape shared with a plurality of users or a plurality of tasks. At least one information recording medium is provided with a plurality of logical volumes. Each of the logical volumes stores a set of information and is defined as a single physical volume. A recording/reproducing unit records input information on the information recording medium and/or reproduces output information from the information recording medium. A staging device stages and destages the input information to be recorded on the information recording medium and/or the output information reproduced from the information recording medium by the recording/reproducing unit. The staging device is controlled so that the staging device stages and destages the input information and/or the output information in accordance with loading and unloading of the recording/reproducing unit.
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