HP-UX Workload Manager A.03.00 Release Notes for HP-UX 11i v1 and HP-UX 11i v2

HP-UX Workload Manager Release Notes

Known problems and workarounds

Temporary Instant Capacity expires while WLM is managing

nPartitions

Issue

WLM manages nPartitions using its wlmpard daemon. Assume wlmpard is

started on a system that has Temporary Instant Capacity in use. If that

temporary capacity expires, wlmpard will still be able to deactivate CPUs

without any problems. However, wlmpard may attempt to activate CPUs

based on the expired capacity. These attempts will fail because the

temporary capacity no longer exists. wlmpard will not abort, but it may

continue to attempt to activate unavailable CPUs, generating a message of

the following form in /var/opt/wlm/msglog:

Error increasing CPU count on partition par_name (has x needs

y).

You will also see the message:

Unable to set the local partition to z CPUs. Check the

partition status.

where x, y, and z represent integer values.

Workaround

Add a utilitypri statement to your wlmpard configuration, say

configuration_file, and then load the new file:

# /opt/wlm/bin/wlmpard -a configuration_file

The utilitypri keyword allows WLM—when Temporary Instant Capacity

is available—to adjust the CPU total to meet demand.

The keyword also ensures WLM maintains compliance with your license for

Temporary Instant Capacity: When the license is exhausted, WLM will no

longer attempt to use the temporary resources.