Patent ID: 6983295

Claim:
In a single host server which operates under a Master Control Program (MCP), said single host server holding a normally active database means having a data disk file means (D 1 ) which is mirrored to an auxiliary database means having an auxiliary data disk file means (D 2 ), a method for establishing recovery operations upon failure of said active database means comprising the steps of: (a) utilizing a DMUTILITY program to QUIESCE said active database means (D 1 ) and to transfer its data, at a Time Stamp starting point, over to said auxiliary database means (D 2 ) wherein step (a) includes the step of: (a1) setting up a REBUILDINFO file to store starting time and ending condition Time Stamps plus multiple information files to supply file locations and relevant Time Stamps; (b) utilizing said Time Stamp starting point to initiate an audit file disk means to update said auxiliary database means (D 2 ); (c) making said auxiliary database means (D 2 ) immediately available for access by user applications.