Method and apparatus for assigning signatures to identify members of a set of mass of storage devices

  • US 5,325,497 A
  • Filed: 03/29/1990
  • Issued: 06/28/1994
  • Est. Priority Date: 03/29/1990
  • Status: Expired due to Term
First Claim
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1. A method for identifying members of a logical set of mass storage devices, comprising the steps of:

  • defining a global identifier for said logical set which serves as a reference for identifying mass storage devices included in said logical set;

    assigning membership signatures to a plurality of mass storage devices, wherein said membership signatures comprise information substantially matching said global identifier which identifies said plurality of mass storage devices as members of said logical set; and

    when a member of said logical set undergoes a change in membership status, defining a new global identifier for said logical set different from said global identifier which thereafter serves as a reference for identifying members of said logical set, and assigning new membership signatures to other ones of said plurality of mass storage devices that remain members of said logical set, wherein said new membership signatures comprise different information substantially matching said new global identifier which identifies said other ones of said plurality of mass storage devices as members of said logical set.

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