HP Instant Capacity User's Guide for Versions 8.x

Temporary Instant Capacity Overview
You can purchase an amount of temporary capacity (TiCAP) time for inactive cores without
usage rights in your Instant Capacity system. Temporary capacity can be purchased in units of
multiple processing-days. Temporary capacity allows one or more inactive cores to be activated
for up to the specified period of pre-paid processing minutes, without requiring permanent usage
rights for the cores.
You can activate and deactivate inactive cores as you wish until the elapsed activation time equals
your prepaid temporary capacity duration. For example, with a prepaid duration of 30 days of
temporary capacity, you can activate one core for 30 days or four cores for one hour a day for
180 days (or any combination that totals 43,200 minutes).
NOTE: Temporary capacity is always debited when there are more cores active than there are
core usage rights on the system, even if the system has no temporary capacity applied to it.
Temporary capacity activations are persistent. That is, activations using temporary capacity
survive in a partition that is rebooted. You must deactivate cores to stop consumption of temporary
capacity. The cores deactivated need not be on the same partition as those you activated to start
consuming temporary capacity.
NOTE: Temporary capacity credits may be used on any partition in the complex for which they
were purchased. Temporary capacity credits are not transferable from one system to another,
unless the systems are in the same Global Instant Capacity group. See Chapter 7 for details of
temporary capacity in a GiCAP group.
If temporary capacity is depleted and you continue to have more active cores than core usage
rights across the complex, on the next reboot of any partition in the complex the software will
automatically deactivate one or more cores in order to bring the system into a state closer to
compliance. The Instant Capacity software will deactivate as many cores as is necessary to either
stop consumption of temporary capacity or to bring the partition to the minimum number of
required active cores (one per active cell board).
74 Temporary Instant Capacity