External storage unit comprising active and inactive storage whe

Details External storage unit comprising active and inactive storage whe External storage unit comprising active and inactive storage whe

1992-09-11

1996-12-10

Asta, Frank J.

Boots, shoes, and leggings

395488, 395439, 3642453, 3642432, 3649643, 364DIG1, G06F 1200, G06F 1300

Patent

active

055840086

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.

REFERENCES:
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patent: 5155835 (1992-10-01), Belsan
patent: 5193171 (1993-03-01), Shinmura et al.
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patent: 5265098 (1993-11-01), Mattson et al.
patent: 5283791 (1994-02-01), Halford
patent: 5301297 (1994-04-01), Menon et al.
patent: 5333143 (1994-07-01), Blaum et al.
IBM General Information GH 35-0092-5, 1989, "Data Facility Hierarchical Storage Manager " Version 2 Release 5.0.

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