HP Cluster Software manual Troubleshooting installation and maintenance problems

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2.Start the 3PAR Cluster Extension InstallShield wizard:

a.Depending on your version of Windows, do one of the following:

•Select Start→Control Panel→Programs and Features.

•For Server Core or Hyper-V Server: Run the 3PAR Cluster Extension installation package from the command line. Continue to Step 3.

b.Select HP 3PAR Cluster Extension . Click Uninstall/Change. The InstallShield maintenance window appears.

3.Select Remove, and then click Next.

The InstallShield wizard prompts you to confirm the uninstall request.

4.Click Yes to confirm the request.

The Cluster node selection window appears.

5.Select the cluster nodes for 3PAR Cluster Extension removal, and then click Next.

6.Do one of the following:

• Click Yes if you want to save the Cluster Extension configuration file. Enter a file name, and then click Save.

• Click No.

7.Click OK.

The install wizard asks if you want to unregister the cluster resource type from all nodes in the cluster. HP recommends that you do not unregister the cluster resource type until you are uninstalling HP 3PAR Cluster Extension Software from the last node in the cluster. Do one of the following:

• If you have not unregistered the cluster resource type, and this is the last node in the cluster, click Yes.

• If you have unregistered the cluster resource type from one of the other cluster nodes, click No.

The Uninstall Complete window appears.

8.Click Finish.

NOTE: On Server Core Failover cluster nodes, if user wants to back up the CLX configuration data before CLX uninstallation, user needs to manually copy the file clx3PARcfg present at the location <CLX Installation Path>\bin. CLX uninstallation process will not be able to back up the configuration data during the uninstallation.

Troubleshooting installation and maintenance problems

This section helps you locate and identify installation and maintenance problems. The cluster-wide installation feature allows you to install HP 3PAR Cluster Extension on multiple nodes in a cluster by running the installer from one node in the cluster. Cluster-wide installation is no different than local installation on each individual node.

Cluster-wide installation can fail to obtain the remote installation status if a remote node becomes unreachable. This can happen if the network connection or remote cluster node fails. If this type of failure occurs, find the error code in the file %WINDIR%\CLXSetup_nodename.result, available on the unreachable node, and then locate the error in Table 1 (page 16).

In addition to showing the results of the installation process, the .result file helps you identify the status of remote maintenance if cluster level maintenance (modify, repair, remove) fails.

Troubleshooting installation and maintenance problems

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Contents HP 3PAR Cluster Extension Software Installation Guide Acknowledgments Contents Glossary Index Support and other resourcesStorage replication link requirements Preparing to install HP 3PAR Cluster ExtensionIdeal environment Network communication requirementsHow HP 3PAR Cluster Extension stores information General installation prerequisitesHow HP 3PAR Cluster Extension utilizes virtual volumes Failover functionRequired firmware and software Prerequisites Installing HP 3PAR Cluster Extension SoftwarePre-installation procedures Checking the IP network setup and SAN configurationInstalling HP 3PAR Command Line Interface CLI Configuring the HP 3PAR storage systemCreating hosts and setting host persona Installing Microsoft Failover Cluster Msfc on all nodes Creating virtual volumes and adding a LUN presentationCreating Remote Copy volume groups LUN presentation to the secondary virtual volumesInstalling HP 3PAR Cluster Extension Software Installing HP 3PAR Cluster Extension Software Modifying the 3PAR Cluster Extension installation HP 3PAR Cluster Extension maintenanceRemoving 3PAR Cluster Extension Repairing the 3PAR Cluster Extension installationTroubleshooting installation and maintenance problems Windows remote installation error codes Installinstanton HKEYLOCALMACHINE\SOFTWARE\ Cluster resourcetype Cluster /UNREGADMINEXTclx3PARmscsex.dll Registered Two types of licensing model supported by CLX Using AutoPass to retrieve permanent license keysLicensing Retrieving a license keyUsing the clxautopass command-line utility Applying host based permanent licenseApplying Device based permanent license Removing license key Select any installed license key, and then click Remove Related information Support and other resourcesContacting HP New and changed information in this editionDocument conventions Typographic conventionsCLI GlossaryIndex
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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.
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