Patent ID: 6957221

Claim:
A program embedded in a tangible medium for operating a system for enabling continual database access to client-users in a primary server-database means with primary database means and client-users in a secondary-server database means connected through a bus means wherein said secondary-server database means provides a secondary backup database means which replicates said primary database means, said system comprising: (a) means to maintain physical data consistency between said primary database means and said secondary backup database means; (b) means to momentarily suspend said primary database means in order to utilize control points enabling updating transmission from said primary database means to said secondary database means for keeping consistency between said databases; (c) means to lift said temporary suspension of primary database access; (d) means to mirror said secondary backup database ( 25 ) onto a secondary auxiliary mirrored disk copy ( 23 ); (e) means for utilizing said auxiliary mirrored disk copy as an auxiliary backup database, said means including: (e1) means for connecting said auxiliary mirrored disk copy to a tertiary server means to provide a concurrent database for said tertiary server means.