Patent Number: 7,043,504

Title: System and method for parallel primary and secondary backup reading in recovery of multiple shared database data sets

Abstract: A recovery utility apparatus for expediting recovery time during failure of one or more database data sets is provided. A backup copy restore utility is configured to read and restore a backup copy of the database data set. A change accumulation manager is configured to read detail records in an incomplete change accumulation data set. A log manager is configured to read a log to derive updates subsequent to a merge end point, wherein the updates are reflective of spill records. An image copy restore utility is configured to apply the detail records to the backup copy to thereby create a restored database data set. A database update manager is configured to apply the updates to the restored database data set.

Inventors: Moore; David W. (Morgan Hill, CA), Perry; Frederick Stephen (San Jose, CA)

Assignee: International Business Machines Corporation

International Classification: G06F 12/00 (20060101)

Expiration Date: 5/09/02018