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

Models: UX 11i Workload Management (gWLM/WLM) Software

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NOTE: You must be logged in as root on the systems where you run the mxstart, gwlmcmsd, and gwlmagent commands mentioned below. In System Insight Manager, you must be logged in as root or have authorizations for “All Tools” or “Matrix OE All tools.”

1.Configure your CMS as indicated in the HP Matrix Operating Environment Software Installation and Update Guide if you have not already done so

2.On each managed node, start the gWLM agent if it is not already running:

# /opt/gwlm/bin/gwlmagent

Alternatively, you can start the agent through System Insight Manager, as discussed in the HP Matrix Operating Environment Software Installation and Update Guide.

3.Connect to System Insight Manager by pointing your web browser to: http://hostname:280

where hostname represents the hostname of the CMS.

4.Select:

Tools→HP Matrix OE visualization...

and then click the Shared Resource Domain tab. From the HP Matrix OE visualization menu bar, select:

Create→Shared Resource Domain

The wizard guides you through the following steps:

1.Specify the hosts on which to run workloads that you want gWLM to manage as part of one SRD.

2.Set SRD properties.

Properties include the SRD name, mode, use of Temporary Instant Capacity (if available on the system), and resource allocation interval.

3.Specify workload and policy settings.

Settings include the workload name and policy.

4.Review and confirm the SRD.

5.Verify the SRD is configured as expected, and click Finish to have gWLM manage the resource allocation for the workloads in the SRD.

NOTE: In Step 3, if there are more than 10 vPars or VMs on a VSP, and if all of them are OFF, the vPars or VMs are not displayed. However, the vPars or VMs that are OFF can be added using the Add vPar or Add VM button. The behavior is similar for VMs on an HPVM host.

Seeing gWLM in action

This section helps you see gWLM move CPU resources among vPars. You can use similar steps to see CPU resources move among nPars, virtual machines, psets, or fss groups. For psets and fss groups, though, you will need to put processes in the desired pset or fss group. (Place processes by modifying the workload definition or by using the gwlmplace command.) In this example:

•The gWLM agent is used on two vPars, named vpar1 and vpar2.

•These vPars are idle and have a number of unbound cores that gWLM can move among them.

•System Insight Manager and the gWLM CMS software are installed, configured, and running on a vPar called vPar3.

To see gWLM in action:

18 Configuring gWLM to manage workloads

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HP UX 11i Workload Management (gWLM/WLM) Software manual Seeing gWLM in action, # /opt/gwlm/bin/gwlmagent
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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.