HP Integrity Essentials Global Workload Manager: Workload Management for HP Integrity Virtual Machines

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Figure 5 - Multiprocessor Virtual Machines
Assume that 8 of the 16 cores in this complex have iCAP usage rights and that there is no available
TiCAP balance. Figure 5A shows that gWLM can migrate an active core (Core4) from the VM Host to
make it available for vPartition2. (If a TiCAP balance was available, Core5 in nPartition2 would be
activated without reducing the active cores for the VM Host in nPartition1.) While doing so, it
maintains the minimum number of vCPUs configured for VM2 and VM3. Virtual machines VM2 and
VM3 are assigned to Core1 to maintain their required vCPU counts (VM2: 2 vCPUs; VM3: 3 vCPUs).
The table in Figure 5A shows the gWLM policies you might apply to the various components in this
scenario. The gWLM policy for VM1 ensures that it can lend the resources needed by VM2 and VM3.
gWLM makes sure VM2 and VM3 always have their required minimum number of cores. Note that
the number of cores (physical CPUs) on the Integrity VM Host must be at least the same as the highest
vCPU count of any virtual machine it hosts.