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Each shared processor pool has a maximum capacity that is associated with it. The maximum pool capacity defines the upper boundary of the processor capacity that the set of partitions in the shared processor pool can utilize. The maximum pool capacity must be equal to or greater than the entitled pool capacity in a shared processor pool.
The system administrator can reserve processor capacity for any uncapped LPAR within the shared processor pool. The reserved pool capacity is the number of processing units that are reserved for the use of all uncapped logical partitions within the shared processor pool.
If some partitions in a processor pool do not use their capacity entitlement, other uncapped LPARs within the same pool are allocated the additional capacity according to the weighting of the LPARs.
The entitled pool capacity of a shared processor pool defines the guaranteed processor capacity that is available to the group of partitions in the processor pool. The entitled pool capacity is the sum of the entitlement capacities of the partitions in the shared processor pool plus the reserved pool capacity. The entitled capacity of a partition provides the basis for utilization statistics and monitoring. A partition consuming all of its entitled capacity reports 100 percent utilization. Depending on its virtual processor configuration, an uncapped partition can consume unused processing capacity from the shared processor pool and in that case it reports more than 100 percent utilization.
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