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Method and apparatus for controlling read and write accesses to a logical entity

  • US 6,978,324 B1
  • Filed: 06/27/2000
  • Issued: 12/20/2005
  • Est. Priority Date: 06/27/2000
  • Status: Expired due to Term
First Claim
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1. A method of moving a logical entity from a first storage element to a second storage element, the logical entity being capable of being accessed by a plurality of host computers, the method comprising steps of:

  • creating a copy of the logical entity on the second storage element;

    moving all reads of the logical entity from each of the host computers to the second storage element; and

    after the step of moving all reads, moving all writes to the logical entity to the second storage element.

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