HP Cluster Software manual User configuration file, Windows Clustering, File structure

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3 User configuration file and HP 3PAR Cluster Extension objects

Objects (also called properties in this document) define the HP 3PAR storage system environment and failover/failback behavior. You can customize HP 3PAR Cluster Extension objects in the user configuration file or in the cluster software.

User configuration file

For the CLI implementation of HP 3PAR Cluster Extension, the user configuration file UCF.cfg is used to configure application service-specific information. UCF.cfg describes the dependencies between application services and HP 3PAR Remote Copy volume groups in one file for all application services in the cluster.

AUCF.cfg file is available in the HP 3PAR Cluster Extension sample directory %ProgramFiles%\ Hewlett-Packard\Cluster Extension 3PAR\sample. This file can be copied and modified to suit a specific configuration.

After the user configuration file has been created, it must be copied to the /conf directory on all cluster nodes.

%ProgramFiles%\Hewlett-Packard\Cluster Extension 3PAR\conf

For more information, see “Sample configuration file” (page 53)and “Creating and configuring the user configuration file” (page 57).

Windows Clustering

HP 3PAR Cluster Extension integration with Windows cluster does not require a user configuration file when the standard environment for HP 3PAR Cluster Extension is used. The HP 3PAR Cluster Extension objects that are integrated with Windows cluster can be configured as resource private properties in the cluster software. See “Configuring HP 3PAR Cluster Extension” (page 16) for more information.

File structure

The configuration file consists of a COMMON section and an APPLICATION section. These sections are distinguished by control tags. HP 3PAR Cluster Extension uses the following objects as control tags:

•COMMON

•APPLICATION

Objects have one of the following formats:

tag

A definition of an object; for example, COMMON or APPLICATION

integer

A number; for example, a timeout value

string

A name, which can include alphabetic and numeric characters and underscores; for

 

example, an application startup value

list

A list of space-separated strings, for example, a list of host names (lists of numbers are

 

stored as lists of strings)

Text that is a comment starts with the pound (#) symbol and continues until the end of the line. Comments can start on a new line or be part of a line specifying an object.

User configuration file

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Contents HP 3PAR Cluster Extension Software Administrator Guide Acknowledgments Contents CLI commands and utilities Glossary Index TroubleshootingSupport and other resources Disaster tolerance through geographical dispersion Integration into cluster software Graphical user interfaceCLI for easy integration Metropolitan distance support Automated redirection of mirrored disksFully Automatic Failover and Failback No server rebootSynchronous mode support Storage system configurationsTo-1 configuration To-1 configurationHP 3PAR Remote Copy To-1 and 1-to-N configurationsProcesses and components 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 considerationsIntegrating HP 3PAR Cluster Extension with Msfc Configuring HP 3PAR Cluster ExtensionStarting the HP 3PAR Configuration Tool 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 Set-ClusterParameter -Name propertyname -Value valuetoset Setting HP 3PAR Cluster Extension properties using a UCFCluster resource clxfileshare /privprop Adding dependencies on a HP 3PAR Cluster Extension resource Adding dependencies using Failover Cluster ManagementCluster resource Disk32b00b /adddependencyclxfileshare Adding dependencies using the CLIAdding dependencies using the PowerShell Four nodes host1DCA, host2DCA, host3DCB and host4DCB Configuration of HP 3PAR CLX for CSV disk on Windows ServerDisaster-tolerant configuration example using a file share Service or application example \cluster resource Clxfileshare /ProP RestartAction=0 Managing HP 3PAR Cluster Extension resourcesBringing a resource online Disk3PARLUN25Deleting a resource Using Hyper-V Live Migration with HP 3PAR Cluster ExtensionTaking a resource offline Timing considerations for Windows Clustering Msfc Bouncing service or applicationCreating array password file Administration Hyper-V Live Migration log entries System resourcesLogs 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 environmentTiming considerations Installing HP 3PAR InForm Command Line Interface CLICreating and configuring the user configuration file 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 Run showsys Error return codesHP 3PAR storage system log or sysmgr log Msfc log file %windir\cluster\reports\cluster.log Start errorsLog files Failover error handling Nslookup storage system network name Cannot connect to HP 3PAR storage systemEcho rescan diskpart Ping storage system network name or IP addressNofailwrtonerr settings Change of HP 3PAR storage system IP or password fileHost persona 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
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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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