Data storage device, command queue re-ordering method, and...

Details Data storage device, command queue re-ordering method, and... Data storage device, command queue re-ordering method, and...

2006-03-07

2006-03-07

Nguyen, T (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S111000, C711S112000, C711S151000, C711S167000

Reexamination Certificate

active

07010653

ABSTRACT:
A method and system to provide a command queue re-ordering method that can make the power save and reduction in acoustic noise. The command queue re-ordering method involves calculating the value of an evaluation function, Ev=A×T+(1−A)×Fun(L) (A is any number from 0 to 1, T is a latency required to execute a write command and/or read command, and Fun(L) is an evaluation function with a seek distance L) for the write command and/or read command, and selecting the write command and/or read command having the minimum value as a next command to be execute.

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