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Synchronous replication for system and data security

  • US 7,149,858 B1
  • Filed: 10/31/2003
  • Issued: 12/12/2006
  • Est. Priority Date: 10/31/2003
  • Status: Active Grant
First Claim
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1. A method comprising:

  • replicating an operation on data from first data storage in a first security domain to second data storage in a second security domain, whereinthe first security domain and the second security domain are independent of one another,the first security domain permits a first host in the first security domain to directly access the first data storage, andthe first security domain prohibits a second host in the second security domain from directly accessing the first data storage;

    awaiting a receipt of an acknowledgement that the operation on the data has been completed in the second security domain; and

    completing the operation on the data in the first security domain in response to the receipt of the acknowledgement that the operation on the data has been completed in the second security domain, wherein the completing the operation in the second security domain comprises completing the operation on the data in second data storage in the second security domain.

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  • 8 Assignments
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