HP Instant Capacity User's Guide for versions B.07.x

Using Instant Capacity to Manage Processing Capacity
Activating Processors
Chapter 4 57
Constraints The Instant Capacity software will not activate a processor that is
marked for deconfiguration. Also, you cannot use Instant Capacity to
activate more processors than are configured in the current nPartition. If
you want more, you need to modify the nPartition with the parmodify
command. You can use Instant Capacity to activate more processors than
are configured into the current virtual partition, but only if the
associated nPartition contains enough unassigned processors to fulfill
the request. Otherwise, you need to use parmodify to reconfigure the
nPartitions, or vparmodify to remove processors from other virtual
partitions within the same nPartition (essentially, adding to the
unassigned pool).
To activate one or more inactive processors, use the icod_modify
command as root. See the manpage icod_modify(1M) for details.