For information on enabling and viewing these events, refer to Optimize→Global Workload Manager→Events.

You can then view these events using the Event Lists item in the left pane of System Insight Manager.

The following sections explain how to handle some of the events.

“Node Failed to Rejoin SRD on Start-up” event

If you see the event “Node Failed to Rejoin SRD on Start-up”:

1.Restart the gwlmagent on each managed node in the affected SRD:

# /opt/gwlm/bin/gwlmagent --restart

2.Verify the agent rejoined the SRD by monitoring the Shared Resource Domain View in System Insight Manager or by using the gwlm monitor command.

3.If the problem persists, check the files /var/opt/gwlm/gwlmagent.log.0 and /var/ opt/gwlm/gwlmcmsd.log.0 for additional diagnostic messages.

“SRD Communication Issue” and “SRD Reformed with Partial Set of Nodes” events

NOTE: Reforming with a partial set of nodes requires a minimum of three managed nodes in the SRD.

NOTE: “SRD Communication Issue” events are not enabled by default. To see these events, configure your events in System Insight Manager through the HP Matrix OE visualization menu bar using Tools→Global Workload Manager→Events.

If you have an SRD containing n nodes and you get n - 1 of the “SRD Communication Issue” events but no “SRD Reformed with Partial Set of Nodes” events within 5 minutes (assuming an allocation interval of 15 seconds) of the first “SRD Communication Issue” event, you might need to restart the gwlmagent on each managed node in the affected SRD:

#/opt/gwlm/bin/gwlmagent --restart

Manually clearing an SRD

If gWLM is unable to reform an SRD, you can manually clear the SRD, as described in the following section.

Clearing an SRD of A.02.50.00.04 (or later) agents

The following command is an advanced command for clearing an SRD. The recommended method for typically removing a host from management is by using the gwlm undeploy command.

Starting with A.02.50.00.04 agents, you can manually clear an SRD with the following command:

#gwlm reset --host=host

where host specifies the host with the SRD to be cleared.

If this command does not work, use the procedure given in the following section.

Clearing an SRD of agents of any version

The procedure in this section clears an SRD regardless of the version of the agents in the SRD.

The gwlm command is added to the path during installation. On HP-UX systems, the command is in /opt/gwlm/bin/. On Microsoft Windows systems, the command is in C:\Program Files\ HP\Virtual Server Environment\bin\gwlm\ by default. However, a different path might have been selected at installation.

NOTE: You must be logged in as root on HP-UX or into an account that is a member of the Administrators group on Windows to run the commands below.

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HP UX 11i Workload Management (gWLM/WLM) Software Manually clearing an SRD, Node Failed to Rejoin SRD on Start-up event
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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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