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COMPUTER SYSTEM, STORAGE DEVICE AND DATE UPDATING METHOD

  • US 20120060154A1
  • Filed: 08/30/2011
  • Published: 03/08/2012
  • Est. Priority Date: 10/23/2008
  • Status: Abandoned Application
First Claim
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1. A computer system comprising:

  • a computer including a first processor manages a first virtual computer and a second virtual computer; and

    a storage system including a second processor provides a first virtual volume to the first virtual computer and a second virtual volume to the second virtual computer, an original data volume which stores an original data shared by the first virtual volume and the second virtual volume, and a differential data volume which stores a first differential data of the first virtual volume and a second differential data of the second virtual volume;

    wherein if the first processor receives a first request to update a first data stored in a first virtual area of the first virtual volume, the first processor requests the storage system to store the first data in a first area of the original data volume, the first area corresponding to the first virtual area,wherein if the first processor receives a second request to update a second data stored in a second virtual area of the first virtual volume, the first processor requests the storage system to store the second data in a second area of the differential data volume, the second area corresponding to the second virtual area.

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