HiperSockets
HiperSockets is a technology developed by IBM for high-speed communication between individual partitions on a mainframe using a hypervisor . The terminology is mostly mentioned in connection with zSeries mainframes. The HiperSockets technology enables a connection defined in the main memory, based on TCP / IP, between LPARs . Different mainframe operating systems can run on these LPARs, for example z / OS , z / VM or Linux on System z .
From the perspective of the application software of a mainframe, there is no functional difference between the classic use of communication under LPARs via network card ( OSA ) and HiperSockets. Nevertheless, the use of HiperSockets requires less processor overhead on both sides of the defined connection, which is ultimately reflected in excellent performance. Since HiperSockets connections are defined exclusively via main memory, they also work at the corresponding speed. Further advantages are the reduction of latency times and the elimination of additional hardware such as hubs, routers, adapters or cabling.
Communication links based on HiperSockets can only be defined on a physical mainframe system. A definition between multiple physical mainframe servers is not possible.