Resources Contact Us Home
Remote copy system

Image Number 6 for United States Patent #8131963.

Even when a host does not give a write time to write data, consistency can be kept among data stored in secondary storage systems. The present system has plural primary storage systems each having a source volume and plural secondary storage systems each having a target volume. Once data is received from a host, each of the plural storage systems creates write-data management information having sequential numbers and reference information and sends, to one of the primary storage systems, the data, sequential number and reference information. Each of the secondary storage systems records reference information corresponding to the largest sequential number among serial sequential numbers and stores, in a target volume in an order of sequential numbers, data corresponding to reference information having a value smaller than the reference information based on the smallest value reference information among reference information recorded in each of the plural secondary storage systems.

  Recently Added Patents
Controlling a video window position relative to a video camera position
Redistribution layer (RDL) with variable offset bumps
Power management implementation in an optical link
Routing of data including multimedia between electronic devices
Nutritional supplement method
Process of preparing functionalized polymers via enzymatic catalysis
System for and method of remotely auditing inventoried assets
  Randomly Featured Patents
Ideal operational amplifier layout techniques for reducing package stress and configurations therefor
Peristaltic pump
Method and apparatus for providing a processor module for a computer system
Semiconductor device having heavily doped silicon film
Abrasion resistant surface coatings and method of forming same
Immobilized immunoadsorbent
Method and system for inlining services within a network access device
Printing inks/dye liquors utilizing readily dispersible preparations of dyes and polyvinylacetals
Static and dynamic cervical plates and cervical plate constructs
Aromatic etherketone/sulphone copolymers