HP-UX Workload Manager User's Guide

Introduction
Examples of solutions that WLM provides
Chapter 1 57
Workload. Production (nPartition 0)
Priority. 1
Goal. Match CPU allocation to consumption
The SLO for the Test workload in nPartition 1 is outlined as follows:
Workload. Test (partition 1)
Priority. 2
Usage goal. Match CPU allocation to consumption
Optimizing use of Temporary Instant Capacity (TiCAP) and Pay
per use (PPU)
Temporary Instant Capacity activates CPU resource capacity in a
temporary “calling-card” fashion such as in 20-day or 30-day increments
(where a day equals 24 hours for one core). You purchase a TiCAP
codeword to obtain usage rights for a preset amount of days.. This
codeword is applied to a system so you can turn on and off any number of
Instant Capacity cores on the system as long as your prepaid temporary
capacity time has not expired. (To activate a core, you need a minimum
balance of 30 minutes of temporary capacity per core. Codewords must
be applied in the order in which they were obtained.)
If you have WLM on a supported Temporary Instant Capacity system,
you can configure WLM to minimize the costs of using these resources by
optimizing the amount of time the resources are used to meet the needs
of your workloads.
Similarly, HP offers a Pay per use (PPU) feature for customers interested
in leasing CPU capacity from HP Finance. Pay per use provides capacity
as needed but basing payment on actual metered or monitored use of
that capacity. Using WLM with a system running a supported version of
PPU, WLM increases or decreases the capacity automatically, allocating
the minimum number of cores needed to satisfy SLOs. By minimizing the
number of active cores, WLM reduces your costs.
After setting up your SLOs in the WLM configuration file as in some of
the previous examples, you then configure the WLM global arbiter
(wlmpard), setting the utilitypri keyword to control how Temporary
Instant Capacity or PPU adjusts CPU resource capacity as needed.
Using this keyword also ensures that WLM maintains compliance with
your Temporary Instant Capacity codeword: when your usage rights
expire, WLM no longer attempts to activate temporary resources. Note