Two measurement tools are available for VM2000 operation:
In the monitor system /SHOW-VM-STATUS performs measurements at VM2000 level for VMs, VM groups, CPU pools and real CPUs. For /390 servers, here some internal VM2000 performance values are also output. The hypervisor activities, planned and actual loads for CPU utilization and VM2000 scheduling data can be monitored.This command can be used to output both periodic measured values and also measured values from the immediate past.
The openSM2 software monitor with online reports (INSPECTOR) and long-term analyses (ANALYZER).
The following ANALYZER report groups are recommended for observing the utilization of the guest systems and of the hypervisor (/390 servers) using openSM2.
In the guest systems
CPU: CPU utilization
CPU utilization in the processor states TU, TPR, SIH. These values are the utilization values determined by the guest system concerned (in relation to the number of virtual CPUs available on the guest system!).In the monitor system
VM2000: VM2000 utilization/VM2000 hypervisor
CPU utilization, current CPU quota and current maximum performance utilization per VM. CPU consumption of the hypervisor and hypervisor idle (/390 servers).VM2000: CPU pool
CPU utilization and dimensioning of the CPU pools.VM2000: VM groups (/390 servers)
CPU utilization, current CPU quota and current maximum performance utilization per VM group.