Disk file with clearance and glide measurement and early head cr

Details Disk file with clearance and glide measurement and early head cr Disk file with clearance and glide measurement and early head cr

1994-02-22

1995-04-25

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7303, 324212, G11B 1546

Patent

active

054104394

ABSTRACT:
The invention produces and maintains clearance and glide test results for a disk file, stores these results, and monitors head clearance and disk asperities over the useful life of the file using native disk file electronics. The disk file includes a predictive failure analysis component which utilizes clearance and glide test results to predict impending failure of a disk in the disk file.

REFERENCES:
patent: 4716472 (1987-12-01), McNally
patent: 4777544 (1988-10-01), Brown et al.
patent: 4812927 (1989-03-01), Fechner
patent: 4841389 (1989-06-01), Hoyt et al.
patent: 4872071 (1989-10-01), Easton et al.
patent: 5280340 (1994-01-01), Lacey
Lath., "Modern Digital and Analog Communication Systems" Second Edition pp. 81-82, 1989.
"Head Flight Height Monitoring" Gaudet et al., IBM Technical Disclosure Bulletin, vol. 11, No. 12, May 1969, p. 1650.
Magnetic Recording, vol. II, Mee & Daniel, Chapter 2, pp. 19-127, 1988.

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