Tag Archives: channel

Global Resource Serialization for zOS – To Serialize or Not To Serialize

Summary This Article summarizes concepts of GRS in IBM zOS mainframe systems explaining how data sharing is performed in a multi-system environment. It also illustrates design specifications of related products. Finally operational aspects for different topologies are described. Introduction As … Continue reading

Posted in IBM zEnterprise Servers | Tagged , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , | Leave a comment

Increasing Number of CHPIDs (Channel Path Identifiers) for LCUs (Logical Control Units)

The channel subsystem (CSS) and the IBM z/OS operating system need to know what hardware resources are available in the computer system and how these resources are connected. This information is called hardware configuration. Hardware Configuration Definition (HCD) provides an … Continue reading

Posted in IBM zEnterprise Servers | Tagged , , , , , , , , , , , , , , , , | Leave a comment