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
Semiconductor device having vertical channel
5-HT.sub.3 receptor modulators, methods of making, and use thereof
Drinking glass with ball embedded in base
Lens module and method for manufacturing thereof
Codeword-enhanced peer-to-peer authentication
Electron-beam lithography method with correction of line ends by insertion of contrast patterns
Semiconductor device including multi-chip
  Randomly Featured Patents
Semiconductor device, light-emitting display device and driving method thereof
Pressure-cooking appliance including opening safety means
Secure, light emitting cell phone
Gun fired sensor platforms
System and method for dynamic generation of proxies for isomorphic interfaces
Method and apparatus for generating a reductant in an exhaust gas of a compression-ignition engine
Semiconductor laser apparatus and fabrication method thereof
Device for the thermal stimulation of gas hydrate formations
Methods and apparatuses for using image acquisition data to detect and correct image defects
Method and system for maintaining data integrity using dual write operations