users can use the CLX resource configuration utility integrated with CSV cluster resource in the Failover Cluster or use the HP 3PAR Resource Configuration Tool (Clx3PARResConfig.exe) to configure the CLX resource for CSV disk.

System resources

Monitor the system resources on a regular basis as part of Windows administration. If any system resource usage by the cluster service is reaching maximum levels, stop and then restart the cluster service. This action automatically fails over the resources and resets system resources. See the Windows cluster documentation for information about how to stop a cluster service.

An alternate method is to manually move all resources to another node in the cluster before stopping the cluster service. After all resources are successfully moved to another node, stop and then restart the cluster service; then, manually move back all resources.

Logs

If the HP 3PAR Cluster Extension log files need to be cleared and reset (for example, to reduce disk space usage), you can delete the files. HP 3PAR Cluster Extension automatically creates new log files.

NOTE: On Windows Server 2012, if VM management functionality is used by customer, the logs for this feature will be created in the same location. But the name of the file is VMClxMscs.log

TIP: Archive the log files before deleting them.

Hyper-V Live Migration log entries

In the HP 3PAR Cluster Extension log file (clxmscs.log), live migration messages include the prefix CLX_LM to help you differentiate live migration issues from HP 3PAR Cluster Extension log messages.

For example:

[10/12/09 20:13:02][2136][CLX_LM: CLXVMDISK04-App01][INFO] CLX detected that Live Migration for VM "Virtual Machine VM04" has begun.

[10/12/09 20:13:02][2136][CLX_LM: CLXVMDISK04-App01][INFO] CLX started gathering VM "Virtual Machine VM04" specific storage information.

Virtual Machine Management hosted on a Cluster Shared Volume on Windows Server 2012

Cluster Shared Volumes of Windows Server 2012, support virtualized workloads to create virtual machines on Cluster Shared Volumes in the Failover Cluster Manager. These VMs are the highly available virtual machines as these are managed by the Failover Cluster.

CSV Disk resource can be owned by one cluster node whereas highly available VMs which are created on the CSV disk can be owned by the same cluster node or any other cluster node. The node which owns the CSV disk resource is called as the co-ordinator node. In a multi-site storage array replicated environment, clustering of nodes is spread across the datacenter. For non CSV disks, the application role like VM role contains the application resource, disk resource and the CLX resource together, which means that in whichever cluster node the disk resource is online, the application resource like VM resource would be online too. Therefore, the entire application role like VM role containing the application resource, disk resource and the CLX resource together would be owned by a cluster node. With the CSV feature in place, the CSV disk can be owned by any cluster node and highly available VMs which are created on the CSV disk running on the same cluster node or the different cluster node as that of the CSV.

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HP Cluster Software manual System resources, Logs, Hyper-V Live Migration log entries

Cluster Software specifications

HP Cluster Software is a robust solution designed to enhance the reliability, availability, and scalability of computing environments in enterprise settings. This software is instrumental in managing clusters of servers, providing a unified framework that allows for efficient resource management, workload distribution, and high availability.

One of the main features of HP Cluster Software is its ability to deliver high availability through failover mechanisms. In the event of a hardware or software failure, the software automatically shifts workloads from the affected node to a standby node within the cluster, minimizing downtime. This feature is critical for organizations that require continuous access to their data and applications.

Scalability is another significant characteristic of HP Cluster Software. Organizations can easily add or remove nodes from the cluster without disrupting ongoing operations. This flexibility ensures that enterprises can adapt to changing workloads and resource demands efficiently, making it suitable for environments ranging from small businesses to large data centers.

Load balancing is a key technology employed by HP Cluster Software. It intelligently distributes workloads across the available nodes, optimizing resource utilization and ensuring that no single server is overwhelmed. By balancing the load, organizations can achieve better performance and enhance the response times of applications, which are essential for user satisfaction.

HP Cluster Software supports various clustering topologies, including active-active and active-passive configurations. This versatility allows organizations to choose the architecture that best fits their operational requirements. Additionally, the software integrates seamlessly with various HP and third-party hardware and software solutions, thus providing a holistic environment for managing IT resources.

Moreover, HP Cluster Software offers centralized management tools that simplify cluster administration. Administrators can monitor cluster performance, manage workloads, and configure settings all from a single interface. This ease of use reduces the complexity often associated with managing large clusters and empowers IT teams to respond rapidly to issues.

In summary, HP Cluster Software is an essential tool for organizations looking to enhance their IT infrastructure's availability, reliability, and performance. With its failover capabilities, scalability options, load balancing technology, and centralized management features, it stands out as a comprehensive solution for modern computing challenges.