System and method for recording direct access storage device ope

Details System and method for recording direct access storage device ope System and method for recording direct access storage device ope

1992-12-31

1998-03-17

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

360 53, 39518302, G11B 1518

Patent

active

057293970

ABSTRACT:
A disk drive includes an error and operating condition tracking mechanism for later analysis. A device controller for the disk drive has access to non-volatile storage. The non-volatile storage is partitioned into one or more areas for storage of condition and error information. A main partition is used for storage of cumulative operating statistics. A secondary partition is used for logging time stamped condition records, with the accumulative count register being used to provide the time stamp. A last in last out partition is used by the device controller to store time stamped error occurrence records for the data storage system.

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Gaudet et al., IBM Technical Disclosure Bulletin, vol. 11, No. 12, May 1969, p. 1650. "Head Flight Height Monitoring".

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