HP-UX 11i September 2005 Release Notes

General System Administration
HP Partitioning
Chapter 5
102
HP-UX Workload Manager
HP-UX Workload Manager (WLM) A.03.00.01 provides goal-based workload
management. This management enables automatic resource allocation and application
performance management through the use of prioritized service-level objectives (SLOs).
It provides this functionality by automating features of HP-UX Virtual Partitions,
nPartitions, Processor Sets, and HP Process Resource Manager (PRM).
Summary of Change
WLM has been upgraded to version A.03.00.01 with the following features:
• CPU migration across nested nPartitions, virtual partitions, and FSS groups
• Support for virtual partitions on HP Integrity servers
• Secure network communications via SSL
• Host-based configurations, which simplify management of nPartitions and virtual
partitions
• Improved diagnostic tools
• Integration with HP Systems Insight Manager
1
• Configuration file for wlmpard no longer supports the partitions or weight
keywords
•The wlminfo command has various new features:
—The -q option to suppress messages in the wlminfo output
—The group subcommand has an -S option to show data for the PRM_SYS group
— The new subcommand proc shows data for the most active processes
—The deprecated vpar subcommand is no longer available
—The host subcommand now has a “CPU Used” column in its output to display
CPU utilization data
•The mincpu / maxcpu keywords are now optional in all cases
• New behavior when the sum of the gmincpu values exceed the total CPU:
Previously, when this sum exceeded the total CPU, the values were scaled down
proportionately so that the sum equals the total CPU. Now, those values are treated
as CPU requests to be met before any other requests are considered. Any weight
values assigned to the workload groups apply.
• Support for cross-partition management when the partitions within the complex are
of different architectures (HP 9000 vs. HP Integrity)
Impact
WLM A.03.00.01 provides the following:
• More flexibility in resource management
• More secure environments
1. See “HP Systems Insight Manager” on page 111.