Method and system for recovering data to maintain business continuity

  • US 6,697,960 B1
  • Filed: 04/27/2000
  • Issued: 02/24/2004
  • Est. Priority Date: 04/29/1999
  • Status: Expired due to Term
First Claim
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1. A method of recovering system function and data in the event of failure of on-line systems connected to a data center, comprising:

  • establishing a first data center having a predetermined equipment configuration;

    establishing a second data center having an equipment configuration which is substantially equivalent to the equipment configuration at the first data center;

    writing critical on-line data in real time to a disk store configuration at the first data center and to a mirror disk store configuration at the second data center;

    backing up critical batch processes during daytime operation of the first data center by storing batch data and processes on the mirror disk store configuration at the second data center;

    backing up critical batch processes during nighttime operation of the first data center by a combination of remote disk mirroring and by creating magnetic tape files critical for nightly batch recovery at a tape silo at the second data center;

    upon system failure, preparing and configuring the equipment configuration at the second data center for operation; and

    determining the state of the system at the time of failure with a scheduling subsystem on said equipment at the second data center, to determine which on-line systems need to be restarted.

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