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With PEP 2.0, the cloud management console (CMC) is the entity that collects, records and reports the CPU consumption of all the partitions across all the servers in the PEP pool. The data collected by CMC is a 1 minute sample that is correlated by CMC. Net, the hypervisor on one server does not have any knowledge of the CPU consumption of partitions on other servers. IBM would not be able to leverage the existing CMC support for accounting of shared processor pools as this is a one-way communication from the HMC to CMC and its not acceptable to use a 1 minute granularity for making dispatching decisions.
To implement this request, we would need a control point and a high-speed communication mechanism between the various PowerVM hypervisors participating in a PEP 2.0 pool in order to maintain the customer and vendor expectations about the consumption limits of shared processor pools. This would require a significant investment so IBM cannot commit to providing this support at this point in time. We will continue to consider this as a long range goal as there is lots of interest in such a feature.