Instant Capacity on Demand (iCOD) User's Guide for versions B.05.x

Using iCOD to Manage your Processors
Load-balancing Active Processors
Chapter 4 61
Load-balancing Active Processors
NOTE This section also applies to virtual partitions (vPars).
iCOD offers dynamic resizing of partitions on hardware-partitionable
systems (for example, Superdome). Specifically, active processors can be
redistributed across any or all partitions of a hardware-partitionable
system if those partitions contain iCOD processors.
For example, consider a Superdome 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 Superdome
complex is the same at the end of this operation.
IMPORTANT To avoid any billing consequences, 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 cost you anything?
No, because you did not change the overall number of active processors
in the Superdome complex, there is no charge.