×

STORAGE SYSTEM AND ITS CONTROL METHOD

  • US 20110191554A1
  • Filed: 07/17/2009
  • Published: 08/04/2011
  • Est. Priority Date: 07/17/2009
  • Status: Active Grant
First Claim
Patent Images

1. A storage system, comprising:

  • a memory set with a command queue for temporarily retaining a command from a host device; and

    a control unit for storing the command issued from the host device in the command queue, and executing the command stored in the command queue in the order that the command was stored in the command queue,wherein the control unit sets a copy queue for temporarily retaining a copy command among the commands issued from the host device in the memory,moves the copy command among the commands from the host device stored in the command queue to the copy queue and sends an execution completion reply of copy processing according to the command to the host device as a sender of the command, andexecutes the copy command that was moved to the copy queue in the background in the order that the copy command was stored in the copy queue.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×