HP Instant Capacity (iCAP) manual Temporary Instant Capacity Overview

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 processing days. Temporary capacity allows one or more inactive cores to be activated for up to the specified period of prepaid processing time, without requiring permanent usage rights for the cores.

You can activate and deactivate inactive cores as necessary until the elapsed activation time equals the duration of your prepaid temporary capacity. For example, with a prepaid duration of 30 days of temporary capacity, you can activate one core for 30 days or four cores for 1 hour a day for 180 days (or any combination that totals 43,200 minutes).

Temporary capacity activations are persistent. This means that activations using temporary capacity survive in a partition that is rebooted. You must deactivate cores to stop consumption of temporary capacity. The cores you deactivate need not be on the same partition as those you activated to start consuming temporary capacity.

NOTE: Temporary capacity credits can 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. For details of temporary capacity in a GiCAP group, see Chapter 7.

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 automatically deactivates one or more cores in order to bring the system into a state closer to compliance. The Instant Capacity software deactivates as many cores as 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).

IMPORTANT: Temporary capacity can be used to activate Instant Capacity cores on a temporary basis only. It cannot be used to activate Instant Capacity cell boards or Instant Capacity memory.

Figure 5-1illustrates the process of purchasing and applying temporary capacity.

76 Temporary Instant Capacity