External storage unit comprising active and inactive storage wherein data is stored in an active storage if in use and archived to an inactive storage when not accessed in predetermined time by the host processor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Dec 10, 1996
Grant Date -
N/A
app pub date -
Sep 11, 1992
filing date -
Sep 12, 1991
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An external storage system connected to a host apparatus includes a plurality of storage devices, and a control unit for controlling the above described plurality of storage devices, wherein the above described control unit manages a storage space formed by the above described plurality of storage devices by dividing the storage space into a first storage pool to be directly accessed by the above described host apparatus and a second storage pool not to be directly accessed by the above described host apparatus.
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