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SERVER IMAGE MIGRATION

  • US 20110071983A1
  • Filed: 09/23/2009
  • Published: 03/24/2011
  • Est. Priority Date: 09/23/2009
  • Status: Active Grant
First Claim
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1. A method of migrating a virtual server image in a system which includes a first site, a second site, and a third site, the first site having a first server and a first storage system coupled to the server via a first network, the second site including a second server and a second storage system coupled to the second server via a second network, the third site being coupled to the first site and the second site, the third site having a plurality of gold images, the virtual server image being migrated using the gold images, the method comprising:

  • storing a first gold image at the first site;

    storing a second gold image at the second site;

    creating a first snapshot volume at the first site based on the first gold image, the first gold image corresponding to a first gold image ID;

    sending the first gold image ID, update data of the first gold image, and address information for the update data, from the first site to the second site;

    creating a second snapshot volume at the second site based on the second gold image corresponding to the first gold image ID;

    allocating storage for storing the update data at the second site with reference to the address information; and

    storing the update data in the allocated storage.

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