HP UX 11i Workload Management (gWLM/WLM) Software manual

Workaround

Two options are available:

•Adjust the entitlements of those virtual machines that are on so that the CPUs are not oversubscribed.

•Stop one or more virtual machines until those still on do not oversubscribe the CPUs.

Unmanaging a VM or vPar that is ON leaves SRD undeployed

When unmanaging a started VM or vPar on VSP, the SRD can be undeployed, even though the following message is displayed:

The virtual machine VM_name on host hostname is on but does not have an associated gWLM policy. Please turn the virtual machine off, or apply a gWLM policy to provide the necessary resources.

Workaround

Turn off the VM or vPar and redeploy the SRD that contained it.

Excluding a VM or vPar that is ON during the modification of the SRD leaves the SRD undeployed

When a started VM or vPar on VSP is excluded when modifying the SRD, the following message is displayed leaving the SRD undeployed:

The virtual machine VM_name on host hostname is on but does not have an associated gWLM policy. Please turn the virtual machine off, or apply a gWLM policy to provide the necessary resources.

When this error message is displayed and the user cancels the modification process, the SRD gets undeployed.

Workaround

Always ensure that VMs and vPars that are ON are included as part of the SRD. Else, turn off the VM or vPar, and redeploy the SRD that contained it.

70 Global Workload Manager known issues

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.