Disk drive controller accepting first commands for accessing com

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Details

3642383, 3642453, 3642456, 364DIG1, G06F 1300

Patent

active

055309607

ABSTRACT:
A disk drive array with a controller which provides: dynamic remapping for grown defects in the disk drives, multi-thread request processing with a variable number of forkings, defect tracking with both logical and physical lists, guarded writes of less than a full stripe optimized by selectably using the redundancy to limit the number of sectors involved, association of multiple operations with a single disk request in order to facilitate error handling, use of an access hiatus as indication of further opportunity to rebuild data in background, and scatter/scatter (bidirectional scatter/gather) operations.

REFERENCES:
patent: 5140592 (1992-08-01), Idleman et al.
patent: 5148432 (1992-09-01), Cordon et al.
"Introduction to Redundant Arrays of Inexpensive Disks (RAID)" IEEE Apr. 89 pp. 112-117, Patterson, Chen, Gibson, Katz.

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