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

Page 43

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.

Virtual Machine Management hosted on a Cluster Shared Volume on Windows Server 2012 43

Page 42 Page 44
Image 43
Page 42 Page 44
Contents HP 3PAR Cluster Extension Software Administrator Guide Acknowledgments Contents CLI commands and utilities Support and other resources TroubleshootingGlossary Index CLI for easy integration Integration into cluster software Graphical user interfaceDisaster tolerance through geographical dispersion Metropolitan distance support Automated redirection of mirrored disksFully Automatic Failover and Failback No server rebootSynchronous mode support Storage system configurationsTo-1 configuration To-1 configurationProcesses and components To-1 and 1-to-N configurationsHP 3PAR Remote Copy Remote Copy pairs Remote Copy volume groupsForce Flag User configuration fileCluster setup considerations Planning for HP 3PAR Cluster ExtensionNode Majority with File Share Witness 14 HP 3PAR Cluster Extension features SAN fabric considerations Configuration tool clx3PARconfig.exeHP 3PAR InForm Management Console or HP 3PAR InForm CLI IP network considerationsStarting the HP 3PAR Configuration Tool Configuring HP 3PAR Cluster ExtensionIntegrating HP 3PAR Cluster Extension with Msfc Defining the HP 3PAR configuration information using the GUI Configuring HP 3PAR Cluster Extension SystemUser.pwd Defining the HP 3PAR configuration information using the CLI Adding a HP 3PAR Cluster Extension resource Importing and exporting configuration informationExample Adding HP 3PAR Cluster Extension resource using cluster.exeChanging a HP 3PAR Cluster Extension resource name Configuring HP 3PAR Cluster Extension resourcesTIP Setting resource properties and values in the GUI Service or application properties and values Using Failover Cluster Management to set resource properties Make the necessary parameter changes, and then click OK Page Configuring cluster node data center assignments Configuring HP 3PAR storage system Changing Remote Copy volume group settings Selecting a volume groupConfiguring takeover actions Cluster resource clxfileshare /privprop Setting HP 3PAR Cluster Extension properties using a UCFSet-ClusterParameter -Name propertyname -Value valuetoset Adding dependencies on a HP 3PAR Cluster Extension resource Adding dependencies using Failover Cluster ManagementAdding dependencies using the PowerShell Adding dependencies using the CLICluster resource Disk32b00b /adddependencyclxfileshare Disaster-tolerant configuration example using a file share Configuration of HP 3PAR CLX for CSV disk on Windows ServerFour nodes host1DCA, host2DCA, host3DCB and host4DCB Service or application example \cluster resource Clxfileshare /ProP RestartAction=0 Managing HP 3PAR Cluster Extension resourcesBringing a resource online Disk3PARLUN25Taking a resource offline Using Hyper-V Live Migration with HP 3PAR Cluster ExtensionDeleting a resource Creating array password file Bouncing service or applicationTiming considerations for Windows Clustering Msfc Administration Logs System resourcesHyper-V Live Migration log entries Configuring HP 3PAR Cluster Extension Page Configuring HP 3PAR Cluster Extension ProgramFiles%\Hewlett-Packard\Cluster Extension 3PAR\conf User configuration fileWindows Clustering File structureSpecifying object values Common objectsApplicationDir Application objectsLogDir LogLevelApplicationStartup Optional Default %HPCLX3PARPATH% valuesDCBHosts Required ClusterNotifyCheckTimeClusterNotifyWaitTime DCAHosts RequiredDCB InServStorageSerNum Required RCVolumeGroupA RequiredRCVolumeGroupB Required DCA InServStorageSerNum RequiredStatusRefreshInterval Sample configuration fileResyncWaitTimeout Optional HP3PARCLICommandTimeoutPage Clx3PARrun CLI commandsForceflag option Configuring the CLIConfiguring the HP 3PAR storage system Creating the HP 3PAR Remote Copy environmentCreating and configuring the user configuration file Installing HP 3PAR InForm Command Line Interface CLITiming considerations Restrictions for customized implementations CSVDiskName String Synopsis\PSAdd-CSVDependencyOnCLX3PAR Outputs\PSAdd-CSVDependencyOnCLX3PAR -CSVDiskName Cluster Disk Related Links \PSAdd-VMDependencyOnCLX3PAR \PSAdd-VMDependencyOnCLX3PAR -CSVDiskName Cluster Disk Total virtual machines in the cluster residing on CSVRelated Links Name \PSGet-VMOnClusterSharedVolumeListForCLX3PAR Pre-execution and post-execution programs Post-execution return codes Pre-execution return codesProgramFiles%\Hewlett-Packard\Cluster Extension 3PAR\log\ LogsLog facility CLX cmdlet logs %HPCLX3PARPATH%\log\CLXCmdlet.logHP 3PAR Cluster Extension logs HP 3PAR storage system log or sysmgr log Error return codesRun showsys Log files Start errorsMsfc log file %windir\cluster\reports\cluster.log Failover error handling Nslookup storage system network name Cannot connect to HP 3PAR storage systemEcho rescan diskpart Ping storage system network name or IP addressHost persona settings Change of HP 3PAR storage system IP or password fileNofailwrtonerr settings Remote Copy and 3PAR Virtual Domains Promote issueCluster Extension Autopass troubleshooting HP 3PAR Target arrays not configured with Remote Copy LinksHP 3PAR Target arrays not configured with Remote Copy Links Whitepapers Contacting HPNew and changed information in this edition Related informationDocument conventions Typographic conventionsGlossary Index SymbolsIndex Product manuals
Related manuals
Manual 29 pages 1.1 Kb

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.
Top Page Image Contents