Buffer management system and method

Details Buffer management system and method Buffer management system and method

2011-04-19

2011-04-19

Tsai, Henry W (Department: 2184)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output data buffering

C360S051000

Reexamination Certificate

active

07930450

ABSTRACT:
The transfer of data from a host computer to a recordable disk in a disk drive operating on the host computer is managed. A buffer for temporarily storing data to be transferred between the host computer and the recordable disk is maintained, wherein the buffer comprises a plurality of host segments and a plurality of disk segments, and wherein each of the host segments and disk segments have a sector count value associated therewith. In a case where the transfer of data corresponds to a host segment, the host segment is selected from the plurality of host segments in the buffer. In a case where the transfer of data corresponds to a disk segment, the disk segment is selected from the plurality of disk segments in the buffer. In a case where a host segment is selected, the sector count value of the selected host segment is adjusted. In a case where a disk segment is selected, the sector count value of the selected disk segment is adjusted. Thus, the amount of hardware resources is seen to be reduced, and expansion of segmentation is seen to be improved.

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