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Virtualized volume snapshot formation method

  • US 20030131207A1
  • Filed: 04/12/2002
  • Published: 07/10/2003
  • Est. Priority Date: 01/09/2002
  • Status: Active Grant
First Claim
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1. A control method for a computer system having at least one storage device, at least one control device providing at least one storage region of the storage device, and a computer for managing information for providing a virtualized storage region, comprising steps of:

  • adding correspondence information between the storage region provided by the storage device and the virtualized storage region, to the information for providing the virtualized storage region of the computer; and

    holding the correspondence information of the computer entirely or partially in the control device to control the storage device.

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