Dynamic information storage or retrieval – Information location or remote operator actuated control – Selective addressing of storage medium
Patent
1995-08-10
1996-11-12
Gossage, Glenn
Dynamic information storage or retrieval
Information location or remote operator actuated control
Selective addressing of storage medium
395486, 395492, 395495, 369 30, 369 34, 360 9801, 364DIG1, 36424613, 3642481, 3642644, 3649483, 36494831, 3649521, 3649613, G06F 1300, G06F 1212, G11B 1722
Patent
active
055748813
ABSTRACT:
A fast access high capacity data storage system and method are disclosed, the data storage system including a disk-based storage system employing a plurality of storage surfaces. Selected storage surfaces have a plurality of independently controlled data access heads in data communication therewith, and circuitry is provided for allowing concurrent data transfers through the plurality of data access heads. Performance is further improved by monitoring frequently accessed data records and transferring them to a copy recording surface or recording surfaces less frequently used, and by moving a data access head of the plurality of data access heads to other recording surfaces to decrease access bottlenecks. The storage system further includes circuitry for averaging at least one of record length data, transfer timing data, access timing data and address data.
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Fujisawa Hiromichi
Kamo Yoshihisa
Maeda Takeshi
Torii Shunichi
Tsunoda Yoshito
Gossage Glenn
Hitachi , Ltd.
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