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Instant Capacity on Demand (iCOD) User's Guide for versions B.06.x > Chapter 4 Using iCOD to Manage Processing Capacity

Load-Balancing Active Processors

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Active processors can be redistributed across any or all partitions of a hardware-partitionable system if those partitions contain inactive processors.

For example, consider a system with two partitions:

  • Partition 1 has 5 active processors and 3 inactive processors

  • Partition 2 has 8 active processors and 0 inactive processors

You need to add processing power to Partition 1 because of application demand and you notice that the active processors in Partition 2 are under utilized.

Deactivating an active processor in Partition 2 decreases the number of active processors in that partition, and activating one of the processors in Partition 1 increases the number of active processors in that partition. The total number of active processors in the complex is the same at the end of this operation.

IMPORTANT: To comply with processor licensing requirements, it is important to perform the deactivation operation first.

This leaves the following:

  • Partition 1 now has 6 active processors and 2 inactive processors

  • Partition 2 now has 7 active processors and 1 inactive processor

Does the redistribution of active processors affect complex-wide compliance?

No, because you did not change the overall number of active processors in the complex, assuming it was in compliance prior to the redistribution, it remains in compliance.

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