(Windows), increase the CMS database cache size by increasing the value of the com.hp.gwlm.cms.cachesize property by 25%. (The cache is more memory efficient if the size is near a power of 2. If your target cache size is close to a power of 2, round it up to the next power. For example, if your target cache size is 60,000, round it up to 66,000.)

2.Stop and restart gwlmcmsd using the following commands.

NOTE: Stopping gwlmcmsd disables HP Matrix OE visualization and Capacity Advisor.

#gwlmcmsd --stop

#gwlmcmsd

Combining psets and virtual partitions

When using psets on virtual partitions, assigning CPUs to virtual partitions by either path or cell specification can result in processes losing their processor set affiliations when CPUs are removed.

Workaround

Two workarounds are available:

•Do not assign CPUs to virtual partitions by either path or cell specification.

•Set the gWLM policy minimum for pset 0 (the default/OTHER workload) to be greater than or equal to the sum of path-specific CPUs and cell-specific CPUs.

Error during discovery of compartments

The following message might be displayed when you use the Manage New Systems wizard or the gwlm discover command:

Error during discovery of compartments.

In addition, the /var/opt/gwlm/gwlmagent.log.0 file contains the following message:

com.hp.gwlm.common.PlatformException: /usr/sbin/parstatus -w exited

with a non-zero exit status. Captured stderr is: Error: Unable to get the local partition number.

Workaround

This is most likely due to having an outdated version of the nPartition Provider software. Global Workload Manager uses a command that is made available by the nPartition Provider, which is typically in every version of HP-UX, to determine system capabilities.

You can also use the /opt/vse/bin/vseassist command to diagnose the issue. Install the latest nPartition software, even if you are not using nPartitions.

For HP-UX 11i v1, use version B.11.11.01.03.01.01 or later.

For HP-UX 11i v2 on HP 9000 servers, use version B.11.23.01.03.01.01 or later. For HP-UX 11i v2 on HP Integrity servers, use version B.11.23.01.04 or later. You can find the nPartition Provider at the following locations:

•The quarterly AR CD starting May 2005

•The Software Depot website: http://software.hp.com

Modifying Java while gWLM is running

gWLM does not support any actions (including the use of update-ux) that remove, overwrite, or otherwise modify the version of Java that gWLM is using in a managed node or CMS that is part of a deployed SRD.

Documentation or minor issues

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HP UX 11i Workload Management (gWLM/WLM) Software manual Combining psets and virtual partitions
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UX 11i Workload Management (gWLM/WLM) Software specifications

HP-UX 11i Workload Management (gWLM/WLM) software is an integral component of HP's premier UNIX operating system, designed to enhance system performance and resource management across diverse workloads. This advanced tool allows system administrators to monitor, control, and allocate resources effectively to achieve optimal performance, reliability, and service levels in enterprise environments.

One of the main features of gWLM/WLM is its ability to classify workloads and manage them according to specific policies set by the administrator. By using service level objectives (SLOs), administrators can define the performance criteria for various applications and workloads. gWLM continuously tracks these workloads, ensuring that they adhere to the defined SLOs, thus maintaining a high level of application performance.

The software employs resource pools, which segment resources such as CPU, memory, and I/O bandwidth among different workloads based on predefined priorities. This capability ensures that critical applications receive the resources they require, even during peak usage periods, thereby preventing resource starvation that could lead to system slowdowns or crashes.

Another significant characteristic of gWLM/WLM is its real-time monitoring and reporting capabilities. The software provides detailed insights into resource utilization, workload performance, and system health. Administrators can access this information through a user-friendly interface, allowing for informed decision-making and proactive management.

Integration with HP Serviceguard adds another layer of functionality, enabling high availability for critical applications. gWLM can orchestrate workload migration to ensure that service levels are maintained, even in the event of hardware failures or resource contention.

The technology behind gWLM/WLM is built on advanced algorithms that leverage historical data and predictive modeling to optimize resource allocation dynamically. This means that as workloads change, the system can automatically adjust resource distribution to meet performance targets without the need for constant manual intervention.

gWLM also supports integration with various enterprise management tools, enabling administrators to implement comprehensive monitoring and management strategies across the IT infrastructure. The scalability of gWLM allows organizations of all sizes to benefit from its robust workload management features, ensuring that they can adapt to changing demands in their operational environments.

In summary, HP-UX 11i Workload Management software offers a sophisticated solution for optimizing resource utilization, managing workloads effectively, and maintaining high performance in complex enterprise environments. Its comprehensive features and technologies make it an essential tool for any organization seeking to enhance their IT operations.
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