Data transfer performance through resource allocation

Details Data transfer performance through resource allocation Data transfer performance through resource allocation

2005-08-02

2005-08-02

Moazzami, Nasser (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S151000, C711S113000, C710S005000, C710S006000, C710S040000, C710S244000

Reexamination Certificate

active

06925539

ABSTRACT:
Method and apparatus for transferring data between a host device and a data storage device having a first memory space and a second memory space. The first memory space employs a first command queue and a second command queue. The host issues access commands to store and retrieve data. The device stores commands in the first command queue and moves the commands to the second command queue. Write commands are removed from the first command queue and a message is sent to the host device to signal that the command has completed. Read and write commands are sorted at the second command queue for execution in an efficient order. Host transfer resources and disc transfer resources are utilized in such a way as to allow independent operation and to allow transfers using both sets of resources at once. More queue space is available for commands at the first command queue.

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