Dynamic magnetic information storage or retrieval – Head – Core
Patent
1997-02-14
1999-02-16
Lee, Thomas C.
Dynamic magnetic information storage or retrieval
Head
Core
395880, 360 741, G06F 1300
Patent
active
058729976
ABSTRACT:
A processor (50) is connected to use information supplied by a SCSI controller (32) and a buffer manager (36) to dynamically determines a motion threshold and a reconnect threshold for a buffer memory (56) of a SCSI target device, such as a magnetic tape drive (30). The motion threshold is utilized in comparison with a buffer fill level pointer to determine when transport of the storage media (31) is to be restarted. The reconnect threshold is utilized in comparison with the buffer fill level pointer to determine when the target device can reconnect to the SCSI bus (20).
REFERENCES:
patent: 4769811 (1988-09-01), Eckberg, Jr. et al.
patent: 5142422 (1992-08-01), Zook et al.
patent: 5541912 (1996-07-01), Choudhury et al.
Golson, "Setting the Motion and Reconnect Thresholds", Aug. 12, 1991, pp. 1-13.
Chen Anderson I.
Exabyte Corporation
Lee Thomas C.
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