Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Detecting and recovering from silent data errors in application cloning systems










Image Number 10 for United States Patent #8117496.

A method, system, and article for resolving a silent error is disclosed. A primary program copy runs on a primary host, and a secondary program copy runs on a secondary host. The primary and secondary copies communicate to maintain synchronized execution. A third copy of the data is stored on a storage device as a write operations log and maintained in memory on the primary host while the program is running. The primary copy is synchronized with the secondary copy by computing a first checksum of data on the primary host in response to a read operation local to the primary host, computing a second checksum of data on the secondary host in response to a read operation local to the secondary host, and periodically communicating the first checksum to the secondary host, and resolving any discrepancies between the first and second checksum of data reflecting a silent data error.








 
 
  Recently Added Patents
Method and system for streaming digital video content to a client in a digital video network
MRAM with sidewall protection and method of fabrication
Apparatus and method for transferring a data signal propagated along a bidirectional communication path within a data processing apparatus
Disk drive
Method for exchanging data concerning an electronic transaction
Process for production of nickel oxide-stabilized zirconia composite oxide
Power supply apparatus for light emitting diode
  Randomly Featured Patents
Drive unit for vehicular window pane
Image processing method and image processing apparatus
Method and system for inroute bandwidth allocation supporting multiple traffic priorities in a satellite network
Expandable and expanded plastic materials and methods for casting metal castings employing such expanded cellular plastic materials
Voice, lip-reading, face and emotion stress analysis, fuzzy logic intelligent camera system
Automated window system and method for a building
Finger pull for a head cover
Shade apparatus
Camera having operation member on rear cover thereof, variable picture size camera and picture size switching mechanism, and click stop mechanism
Soybean cultivar 61646251