Patent ID: 6697960
Filing Date: 2004-02-24
Classification: G06F

Abstract:
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.