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Production information system enhanced for availability

  • US 5,842,222 A
  • Filed: 10/04/1996
  • Issued: 11/24/1998
  • Est. Priority Date: 10/04/1996
  • Status: Expired due to Term
First Claim
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1. A database and production information system adapted for high availability, and comprising:

  • a) a dual machine architecture having a primary and a secondary side,b) each side having a fileserver, a database, a transaction log and a task communicator,c) said database on the primary side being a primary database and said database on the secondary side being a secondary database,d) said fileserver on the primary side being connected to the primary database, a transaction log, and a task communicator,e) the task communicator on the primary side connected to the task communicator on the secondary side,f) the primary system communicating with the secondary database through the task communicator on the primary side connected to the task communicator on the secondary side,g) the task communicator on the primary side connected to the transaction log,h) said transaction log on the primary side connected to a backup database through a daily backup process,i) said backup database used for database maintenance thereby increasing the availability of the primary system.

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