Dynamic magnetic information storage or retrieval – Head – Core
Patent
1995-03-30
1997-03-25
Lee, Thomas C.
Dynamic magnetic information storage or retrieval
Head
Core
395416, 395800, 395835, 360 69, 360 75, 360 7704, 360 7708, G06F 1310
Patent
active
056153686
ABSTRACT:
A data processing system having a magnetic disk apparatus that includes a patrol seek system that provides for the altering of a patrol seek method. The patrol seek system provides for the selection of a patrol seek method for executing an optimal patrol seek based on the performance characteristics of a high density magnetic disk apparatus. The patrol seek system, equipped with a plurality of high density magnetic disk apparatuses, includes a patrol seek management table for storing patrol seek information for a high density magnetic disk apparatus, a system start processing means, an optimal processing decision means for selecting and deciding the optimal patrol seek method, an input/output means for reading the patrol seek management table, analyzing requests to alter the patrol seek method, and selecting and starting a particular patrol seek process, a patrol seek stopping means, a seek processing means for executing seek processing on a plurality of high density magnetic disk apparatuses on the basis of the contents of the patrol seek management table, and a system shutdown processing means for stopping the patrol seek. The patrol seek system can also include a terminal from which a user can alter the patrol seek method. Furthermore, a patrol seek information display can be included for displaying the information stored in the patrol seek management table.
REFERENCES:
patent: 5124987 (1992-06-01), Milligan et al.
patent: 5233486 (1993-08-01), Albert
patent: 5285330 (1994-02-01), Masaki
patent: 5307489 (1994-04-01), Yamazaki
patent: 5321826 (1994-06-01), Ushiro
patent: 5341339 (1994-08-01), Wells
Nakabayashi Kazunori
Terashima Ryo
Huang Po C.
Lee Thomas C.
NEC Corporation
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