Disk drive executing part of a linked disk command

Details Disk drive executing part of a linked disk command Disk drive executing part of a linked disk command

2005-01-18

2005-01-18

Gaffin, Jeffrey (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output command process

C710S005000, C710S039000, C710S074000, C711S112000, C711S113000, C369S053100, C369S053410, C369S053420

Reexamination Certificate

active

06845405

ABSTRACT:
A disk drive is disclosed which links disk commands that access near sequential data sectors. The linked and non-linked disk commands are inserted into an input/output queue and selected for execution according to a rotational position optimization (RPO) algorithm. If an error occurs while executing a linked disk command, the disk commands are unlinked and at least one of the unlinked disk commands is executed. The residual unlinked disk commands are inserted back into the input/output queue for later execution in an order determined by the RPO algorithm.

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patent: 6272565 (2001-08-01), Lamberts
patent: 6711628 (2004-03-01), Thelin
patent: 20040034750 (2004-02-01), Horn

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