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Storage apparatus system and method of data backup

  • US 20040064659A1
  • Filed: 09/05/2003
  • Published: 04/01/2004
  • Est. Priority Date: 05/10/2001
  • Status: Active Grant
First Claim
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1. For use in an information processing system including a host computer, a main storage apparatus system, and a sub-storage apparatus system which is electrically connected to said main storage apparatus system, a method of carrying out back-up of the data from said main storage apparatus system to said substorage apparatus system, comprising the steps of:

  • sending an instruction to maintain the state of the data in said main storage apparatus system from said host computer to said main storage apparatus system;

    maintaining the state of the data in said main storage apparatus system at a time point when said instruction has been issued; and

    structuring the data, which said main storage system has at a time point when said instruction has been issued, on said sub-storage apparatus system on the basis of the maintained data.

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