Using HP-UX Workload Manager: A quick reference

Where can I find example HP-UX Workload Manager

configurations?

WLM and its toolkits come with example WLM configuration files. These files are located in the

directories indicated in the table below.

For See example WLM configurations in the directory

Examples showing a range of WLM functionality /opt/wlm/examples/wlmconf/

Examples used in this paper /opt/wlm/examples/userguide/

Using WLM with Apache Web servers /opt/wlm/toolkits/apache/config/

Using WLM to manage job duration /opt/wlm/toolkits/duration/config/

Using WLM with Oracle® databases /opt/wlm/toolkits/oracle/config/

Using WLM with SAP® software /opt/wlm/toolkits/sap/config

Using WLM with SAS software /opt/wlm/toolkits/sas/config/

Using WLM with SNMP agents /opt/wlm/toolkits/snmp/config/

Using WLM with BEA WebLogic Server /opt/wlm/toolkits/weblogic/config/

These configurations are also available at the following location (select “Example configurations”):

http://www.hp.com/go/wlm

How does HP-UX Workload Manager control applications?

WLM controls your applications after you isolate your applications in workloads based on:

• nPartitions that use Instant Capacity

• HP-UX virtual partitions

• HP Integrity Virtual Machines (Integrity VM) hosts

• Resource partitions (also known as workload groups), which can be:

– Whole-core: HP-UX processor sets (pSets)

– Sub-core: Fair Share Scheduler (FSS) groups

You create one or more SLOs for each workload to migrate resources among the workloads as

needed. (In the case of nPartitions, which represent hardware, the movement of cores is simulated

using Instant Capacity to deactivate one or more cores in one nPartition and then activate cores in

another nPartition). In defining an SLO, you specify the SLO’s priority. You can also specify a usage

goal to attain a targeted resource usage. Or, if a performance measure (metric) is available, you can

specify a metric goal. As the applications run, WLM compares the application usage or metrics

against the goals. To achieve the goals, WLM then automatically adjusts allocations of cores for the

workloads.

For workload groups (which share the resources of a single HP-UX instance), WLM can manage each

group’s real memory and disk bandwidth resources in addition to its CPU allocation.