System for providing instantaneous access to a snapshot Op data

Details System for providing instantaneous access to a snapshot Op data System for providing instantaneous access to a snapshot Op data

1996-08-27

1998-12-01

Lintz, Paul R.

Data processing: database and file management or data structures

Database design

Data structure types

707203, 711 4, G06F 1730

Patent

active

058452958

ABSTRACT:
A database and warehousing system including a media controller which provides instantaneous access of a snapshot of data for offline analysis by a data analysis host. A transaction host sends the data for storage to the media controller. The media controller stores the data in an original copy with a plurality of mirror images. Upon receiving a request for a snapshot of the data, the data analysis generates a snapshot copy by releasing a mirror image or the original copy. The snapshot copy is provided as a snapshot of data to the data analysis host. After completing processing of the snapshot of data, data analysis host sends a return ready signal to the media controller. In response, the media controller updates the mirror image in the snapshot of data and reconnects the updated mirror image to the transaction host.

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