US 7,321,906 B2
Method of improving replica server performance and a replica server system
Thomas Green, New York, N.Y. (US)
Assigned to OMX Technology AB, Stockholm (Sweden)
Filed on Jul. 23, 2004, as Appl. No. 10/897,436.
Prior Publication US 2006/0020635 A1, Jan. 26, 2006
Int. Cl. G06F 12/00 (2006.01)
U.S. Cl. 707—204  [707/104.1] 12 Claims
OG exemplary drawing
 
9. A replica server system comprising
primary replica means;
secondary replica means;
means for communicating internally between said primary replica means and said secondary replica means and externally between said primary replica means and external sources, said means for communicating being configured to transfer input data received by said primary replica means to said secondary replica means;
means for storing said input data in said primary replica means;
means for processing said input data in said primary replica means, thus creating original output data;
means for generating confirmation data in said secondary replica means upon receiving said input data and transferring said confirmation data to said primary replica means via said means for communicating; and
means for outputting said original output data via said means for communicating when said original output data has been created and said confirmation data has been received.