A Sample Guest Coupling Facility Setup. This sample illustrates creating one configuration of a z/VM sysplex environment. This sample is based on the configuration show in Figure 1. Other configurations can be defined and implemented.
z/VM is able to simulate advanced CF ( Coupling Facility ) and MF (Message Facility ) function, namely, the ability of a set of CFs to be directly connected to one another. z/VM Guest Coupling Simulation provides for the simulation of one or more complete parallel sysplexes within a single z/VM system image. The intent is to provide a pre-production testing platform for a coupled.
TPF can also exploit virtual coupling facility Virtual Coupling Links z/VM or VM /ESA z /OS or OS/390 z /OS or OS/390 z /OS or OS/390 Coupling Facility VM Support for Parallel Sysplex Technology 14. IBM zSeries z/VM provides support for guest use of new Coupling Facility Control Code on new servers Will load either 31-bit or 64-bit versions of CFCC, under z /OS on zAAPs – Operate coupling facility virtual machines in support of a Parallel Sysplex test environment on ICFs and optionally on CPs † Guest LAN and Virtual Switch (VSWITCH) exploiting the Prefetch Data instruction to use new IBM System z10 server cache prefetch capabilities to help performance of guest-to-guest streaming workloads, Because z/VM is executing the actual code that runs in areal coupling facility, there is basically no difference in functionbetween a real coupling facility and z/VM’simplementation . The system administrator must define a user ID for each CF ServiceMachine that will run under z/VM.
IBM Virtual Machine ( VM ) capabilities. z/VM Version 5 (V5) bene?ts from more than three decades of innovation and re?nement, providing users with the … Virtual Coupling Facility (CF) support was enhanced to allow z/VM systems to run as second-level (or higher) guests while sim-, Up to 32 virtual machines can be coupled within a simulated sysplex, with each such virtual machine coupled to up to eight coupling facility virtual machines . In addition, when the processor and z/VM are so capable, each simulated coupling facility can connect to up to seven peer simulated coupling facilities.
S/390 can run on z/VM and realize memory constraint relief because of the z/VM support of large real memory. This support simplifies the migration and testing of 64-bit operating systems and applications. z/VM Version 3 Release 1 supports 64-bit virtual coupling facilities as well as continuing to support them in ESA/390 (32-bit) mode.
