Storage system and method for controlling activation of command

Details Storage system and method for controlling activation of command Storage system and method for controlling activation of command

2011-07-12

2011-07-12

Hafiz, Tariq (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output access regulation

C710S005000, C710S033000, C710S036000, C710S052000, C710S264000

Reexamination Certificate

active

07979603

ABSTRACT:
A storage system including a queue corresponding to each priority level of command and an activation order control part. A command received from a host is accumulated in the queue corresponding to the specified priority. The activation order control part decides the number of activation object commands to be activated among accumulated commands, based on the priority corresponding to the queue. The activation order control part decides the activation order of the activation object commands, based on a activation object command number decided for each queue, so that the average value of logical response time of the activation object command may be shorter at the higher priority. The activation object command is activated in accordance with the decided activation order.

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