Utility Capacity on Demand concepts

The Utility Capacity on Demand (CoD) offering is for customers with unpredictable, short workload increases who need an automated and affordable way to help assure that adequate server resource is available as needed.

When you add utility CoD processors, they are automatically placed in the default shared processor pool. These processors are available to any uncapped partition in any shared processor pool.

The processors become available to the pool's resource manager. When the system recognizes that the combined processor utilization within the shared pool exceeds 100% of the level of base (purchased or active) processors assigned across uncapped partitions, a Utility CoD Processor Minute is charged, and this level of performance is available for the next minute of use. If additional workload requires a higher level of performance, the system will automatically allow the additional Utility CoD processors to be used. The system automatically and continuously monitors and charges for the performance needed above the base (permanent) level.

When action on your part is required after you implement this CoD offering, the HMC displays messages on the HMC desktop.