HP Cluster Software Installing HP 3PAR InForm Command Line Interface CLI, Timing considerations

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Installing HP 3PAR InForm Command Line Interface (CLI)

HP 3PAR Cluster Extension communicates with the HP 3PAR storage system using the HP 3PAR InForm Command Line Interface (CLI). Ensure that you install the supported version of HP 3PAR Command Line Interface (CLI) on a host where clx3PARrun can be used.

Creating and configuring the user configuration file

The CLI expects as an argument the name configured as the APPLICATION tag value.

The following is an example of a customized user configuration file when using clx3PARrun:

#

COMMON

#LogLevel info # errorinfo default: error (optional)

#The APPLICATION part defines failover information for the application

#specified as value of the APPLICATION tag.

#For example, the command - clx3PARrun CLXTEST1 — will use the below

#settings to check and allow access to the disk set specified as volume

#Group CLX_VGTEST1. Example includes similar kind of settings for another

#cluster group CLXTEST2.

#Necessary object when clx3PARrun is used are:

#APPLICATION, DC_A_InServStorage_SerNum, DC_B_InServStorage_SerNum,

#RCVolumeGroupA, RCVolumeGroupB, DC_A_Hosts and DC_B_Hosts

#APPLICATION CLXTEST1

# package/service/cluster group test_application

#DC_A_InServStorage_SerNum

1302871 # 1302871 is the data

center A HP 3PAR

array serial number

 

 

#DC_B_InServStorage_SerNum

1302835 # 1302835 is the data

center B HP 3PAR

array serial number

 

 

#RCVolumeGroupA

CLX_VGTEST1 # CLX_VGTEST1 is the

data center A

HP 3PAR Remote Copy volume group name

 

#RCVolumeGroupB

CLX_VGTEST1.r2835 # CLX_VGTEST1.r2835 is the data

center B HP 3PAR Remote Copy volume group name

 

#DC_A_Hosts clx_node1 clx_node2 # clx_node1, clx_node2 are data

centre A cluster

nodes

 

 

#DC_B_Hosts clx_node3 clx_node4 # clx_node3, clx_node4 are data

centre B cluster

nodes

#ApplicationStartup fastfailback # values: fastfailback resyncwait

#UseNonCurrentDataOk yes # values: yes no #Default value is yes which causes the failover operation to succeed at the destination site when the data at the destination site might not be current. On setting the value to No the resource will not come online at the destination site since the data might not be current.

#APPLICATION CLXTEST2

# package/service/cluster group test_application

#DC_A_InServStorage_SerNum

1302871

# 1302871

is the data center A HP 3PAR

array serial number

 

 

 

#DC_B_InServStorage_SerNum

1302835

# 1302835

is the data center B HP 3PAR

array serial number

 

 

 

#RCVolumeGroupA

CLX_VGTEST2 # CLX_VGTEST2 is the data center A

HP 3PAR Remote Copy volume group name

 

 

#RCVolumeGroupB

CLX_VGTEST2.r2835 # CLX_VGTEST2.r2835 is the data

center B HP 3PAR Remote Copy volume group name

#DC_A_Hosts clx_node1 clx_node2 # clx_node1, clx_node2 are data centre A cluster nodes

#DC_B_Hosts clx_node3 clx_node4 # clx_node3, clx_node4 are data centre B cluster nodes

#ApplicationStartup resyncwait # values: fastfailback resyncwait

#UseNonCurrentDataOk yes # values: yes no #Default value is yes which causes the failover operation to succeed at the destination site when the data at the destination site might not be current. On setting the value to No the resource will not come online at the destination site since the data might not be current.

Timing considerations

HP 3PAR Cluster Extension gives priority to storage system operations over cluster software operations. If HP 3PAR Cluster Extension is invoked at the point when virtual volumes of Remote Copy volume group are in resynchronization or full synchronization operation or is gathering information about the remote storage system, it waits until the requested status information is reported. This ensures the priority of data integrity over cluster software failover behavior. Because the failover timing depends on the configuration of your Remote Copy environment, load on the

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Contents HP 3PAR Cluster Extension Software Administrator Guide Acknowledgments Contents CLI commands and utilities Troubleshooting Support and other resourcesGlossary Index Integration into cluster software Graphical user interface CLI for easy integrationDisaster tolerance through geographical dispersion Metropolitan distance support Automated redirection of mirrored disksSynchronous mode support No server rebootStorage system configurations Fully Automatic Failover and FailbackTo-1 configuration To-1 configurationTo-1 and 1-to-N configurations Processes and componentsHP 3PAR Remote Copy Remote Copy pairs Remote Copy volume groupsCluster setup considerations User configuration filePlanning for HP 3PAR Cluster Extension Force FlagNode Majority with File Share Witness 14 HP 3PAR Cluster Extension features HP 3PAR InForm Management Console or HP 3PAR InForm CLI Configuration tool clx3PARconfig.exeIP network considerations SAN fabric considerationsConfiguring HP 3PAR Cluster Extension Starting the HP 3PAR Configuration ToolIntegrating 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 Setting HP 3PAR Cluster Extension properties using a UCF Cluster resource clxfileshare /privpropSet-ClusterParameter -Name propertyname -Value valuetoset Adding dependencies on a HP 3PAR Cluster Extension resource Adding dependencies using Failover Cluster ManagementAdding dependencies using the CLI Adding dependencies using the PowerShellCluster resource Disk32b00b /adddependencyclxfileshare Configuration of HP 3PAR CLX for CSV disk on Windows Server Disaster-tolerant configuration example using a file shareFour nodes host1DCA, host2DCA, host3DCB and host4DCB Service or application example Bringing a resource online Managing HP 3PAR Cluster Extension resourcesDisk3PARLUN25 \cluster resource Clxfileshare /ProP RestartAction=0Using Hyper-V Live Migration with HP 3PAR Cluster Extension Taking a resource offlineDeleting a resource Bouncing service or application Creating array password fileTiming considerations for Windows Clustering Msfc Administration System resources LogsHyper-V Live Migration log entries Configuring HP 3PAR Cluster Extension Page Configuring HP 3PAR Cluster Extension Windows Clustering User configuration fileFile structure ProgramFiles%\Hewlett-Packard\Cluster Extension 3PAR\confSpecifying object values Common objectsLogDir Application objectsLogLevel ApplicationDirApplicationStartup Optional Default %HPCLX3PARPATH% valuesClusterNotifyWaitTime ClusterNotifyCheckTimeDCAHosts Required DCBHosts RequiredRCVolumeGroupB Required RCVolumeGroupA RequiredDCA InServStorageSerNum Required DCB InServStorageSerNum RequiredResyncWaitTimeout Optional Sample configuration fileHP3PARCLICommandTimeout StatusRefreshIntervalPage Clx3PARrun CLI commandsConfiguring the HP 3PAR storage system Configuring the CLICreating the HP 3PAR Remote Copy environment Forceflag optionInstalling HP 3PAR InForm Command Line Interface CLI Creating and configuring the user configuration fileTiming 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 codesLog facility LogsCLX cmdlet logs %HPCLX3PARPATH%\log\CLXCmdlet.log ProgramFiles%\Hewlett-Packard\Cluster Extension 3PAR\log\HP 3PAR Cluster Extension logs Error return codes HP 3PAR storage system log or sysmgr logRun showsys Start errors Log filesMsfc log file %windir\cluster\reports\cluster.log Failover error handling Echo rescan diskpart Cannot connect to HP 3PAR storage systemPing storage system network name or IP address Nslookup storage system network nameChange of HP 3PAR storage system IP or password file Host persona settingsNofailwrtonerr settings Cluster Extension Autopass troubleshooting Promote issueHP 3PAR Target arrays not configured with Remote Copy Links Remote Copy and 3PAR Virtual DomainsHP 3PAR Target arrays not configured with Remote Copy Links New and changed information in this edition Contacting HPRelated information WhitepapersDocument 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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