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DATABASE SYSTEM WITH ACTIVE STANDBY AND NODES

  • US 20080222159A1
  • Filed: 02/12/2008
  • Published: 09/11/2008
  • Est. Priority Date: 03/07/2007
  • Status: Active Grant
First Claim
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1. A database system comprising:

  • an active node enabled toreceive database updates,apply the database updates to a respective database, andwrite-through the database updates as corresponding active write-through updates;

    a standby node enabled toreceive the active write-through updates,apply the active write-through updates to a respective database, andwrite-through the active write-through updates as corresponding standby write-through updates to a primary database; and

    wherein the respective database of the standby node contains a subset of the database updates as compared to the respective database of the active node, and the primary database contains a subset of the database updates as compared to the respective database of the standby node.

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