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STORAGE CONTROL DEVICE, STORAGE CONTROL METHOD, AND RECORDING MEDIUM

  • US 20170255392A1
  • Filed: 02/23/2017
  • Published: 09/07/2017
  • Est. Priority Date: 03/04/2016
  • Status: Active Grant
First Claim
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1. A storage control device connected to a master disk device that stores data into a plurality of segments continuously, and a plurality of copy disk devices that are copy destinations of the data, the storage control device comprising:

  • a clone processing unit that, when receiving a copy instruction for one of the copy disk devices, repeats reading and writing of each of the segments in order of address to complete copy, andthat, when a first copy disk that is the copy disk device other than a later copy disk that is the specified copy disk device is during copy when receiving the copy instruction, starts copy of the later copy disk from the segment during reading, and, after the completion of reading data of the segment, performs writing into both the first copy disk and the later copy disk.

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