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

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Figure 4 - Complex with Light Integrity VM Workloads (Uniprocessor) and Inactive
Instant Capacity Resources
Now suppose several of the virtual machine workloads increase and the CPU utilization reaches an
undesirable point, as in Figure 4A:
Figure 4A - Heavily Loaded Integrity VM Workloads (Uniprocessor)
gWLM allows you to form SRDs consisting of multiple types of compartments. The workloads in any
compartments can then borrow resources from any of the other compartments in the same SRD. So, in
this scenario, you could create an SRD that contains the six virtual machines in nPartition1 and the
two virtual partitions in nPartition2. With Instant Capacity available in the complex, gWLM can
automatically increase the number of cores available to the overloaded virtual machines by “moving”
unneeded cores from the other hard partition. The cores are not actually moved physically from one
hard partition to another: physical movement is simulated by deactivating cores where they are not
needed (nPartition2) and activating an equivalent number of cores where they are needed
(nPartition1), essentially shifting usage rights between machines. For example, in Figure 4B, gWLM