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Symantec 5 manual Vcs, About installing and configuring VCS

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Chapter 4

Installing and configuring

VCS

This chapter includes the following topics:

■About installing and configuring VCS

■Getting your VCS installation and configuration information ready

■About the VCS installation program

■Installing and configuring VCS 5.0 RU3

■Verifying and updating licenses on the system

■Accessing the VCS documentation

About installing and configuring VCS

You can install Veritas Cluster Server on clusters of up to 32 systems. You can install VCS using one of the following:

Veritas product installer	Use the product installer to install multiple Veritas products.
installvcs program	Use this to install just VCS.

The Veritas product installer and the installvcs program use ssh to install by default. Refer to the Getting Started Guide for more information.

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Symantec 5 manual Vcs, About installing and configuring VCS

Contents

Veritas Cluster Server Installation Guide Legal Notice Veritas Cluster Server Installation GuideSymantec Corporation Ellis Street Mountain View, CA Contacting Technical Support Technical SupportCustomer service Licensing and registrationDocumentation feedback Additional enterprise services Maintenance agreement resourcesContents Contents Chapter Configuring VCS clusters for data integrity 121 Chapter Adding and removing cluster nodesIndex 173 171Contents About Veritas Cluster Server About VCS basicsThis chapter includes the following topics About multiple nodes About shared storageExample of a four-node VCS cluster See About the LLT and GAB configuration files on About LLT and GABAbout network channels for heartbeating About VCS seeding About preexisting network partitionsAbout global clusters About VCS featuresVeritas Installation Assessment Service About VCS notificationsAbout VCS optional components About I/O fencingYou can add the following optional components to VCS About Symantec Product Authentication Service AT About Veritas Cluster Server Management Console See Preparing to configure the clusters in secure mode onSee Installing the Java Console on About Cluster Manager Java ConsoleAbout VCS optional components Page About planning to install VCS Hardware requirements1lists the hardware requirements for a VCS cluster Required disk space Hardware requirements for a VCS clusterDescription Kernel Architecture Supported operating systemsRhel Required Linux RPMs for VCSSupported software Planning to install VCS Supported software Preparing to configure the clusters in secure mode About preparing to install VCS1depicts the flow of configuring VCS cluster in secure mode Workflow to configure VCS cluster in secure mode Preparatory tasks to configure a cluster in secure mode TasksThis task Installing the root broker for the security infrastructure See About Symantec Product Authentication Service AT on# ./installer Venus # vssat showprpl --pdrtype root \ Venus # vssat showalltrustedcredsVenus # vssat showbrokerhash Creating encrypted files for the security infrastructureAddprpl command RootBroker # vssat createpkg \ For examplePerforming preinstallation tasks Obtaining VCS license keys Task ReferenceHttps//licensing.symantec.com You can use network switches instead of hubs Setting up the private networkPage See About installing and configuring VCS on Configuring SuSE network interfaces# ifconfig -a Run the commandWhere ethX is the interface name For example # cd /etc/sysconfigSetting up inter-system communication # ifconfig eth0# cd /etc/sysconfig/network Setting up ssh on cluster systems Accept the default location of ~/.ssh/iddsa# ssh-keygen -t dsa # exec /usr/bin/ssh-agent $SHELL # ssh-add Setting up shared storageSee About setting up disk-based I/O fencing on # chmod 755 ~/.sshSetting the Path variable Setting the Manpath variableFor the C Shell csh or tcsh, type Setting the kernel.panic tunable Optimizing LLT media speed settings on private NICsCase of a panic, the node will reboot after 10 seconds Performing automated pre-installation check Mounting the product disc# mount -o ro /dev/cdrom /mnt/cdrom # ./installvcs -precheck galaxy nebula VCS About installing and configuring VCSTo configure Veritas Cluster Server you need Example galaxy, nebulaExample vcscluster27 To configure VCS clusters in secure mode optional, you need To configure Smtp email notification optional, you needVar/tmp/privatedir/roothash To configure Snmp trap notification optional, you need To configure global clusters optional, you needOptional VCS RPMs See About preparing to install VCS on About the VCS installation programOptional features of the installvcs program VRTSvcsmn Manual pages for VCS commandsOptional action Reference Interacting with the installvcs programAbout installvcs program command options Installvcs command usage takes the following formInstallvcs system1 system2... options Nooptionalpkgs Option and Syntax DescriptionConfiguring VCS using configure option Installing VCS using installonly optionOverview of tasks Installing and configuring VCS 5.0 RU3See Configuring the basic cluster on 3lists the installation and the configuration tasksStarting the software installation # cd /clusterserver Specifying systems for installationStart the installvcs program # ./installvcs -rshSee Checking licensing information on the system on Licensing VCSEnter keys for additional product features Choosing VCS RPMs for installationChoosing to install VCS RPMs or configure VCS See Configuring VCS using configure option on Starting the software configuration# cd /dvdrom/clusterserver Specifying systems for configurationConfiguring the basic cluster # ./installvcs -configurePage Configuring the cluster in secure mode Root/roothash East.symantecexample.comSymantecexample.com Root@east.symantecexample.comTo add a user, enter y at the prompt Configuring Smtp email notificationEnter the user’s name, password, and level of privileges Adding VCS usersSee Configuring Snmp trap notification on Verify and confirm the Smtp notification information Configuring Snmp trap notificationSee Configuring global clusters on If you do not want to add, answer nVerify and confirm the Snmp notification information Configuring global clustersSee Creating VCS configuration files on Installing VCS RPMsVerifying the NIC configuration Creating VCS configuration filesCompleting the installation Starting VCSSet the Persistentname for all the NICs File description VCS node authentication broker See Software requirements for the Java Console on Installing the Java ConsoleSoftware requirements for the Java Console Hardware requirements for the Java Console# cd /mnt/cdrom/distarch/clusterserver/rpms Installing the Java Console on Linux for IBM PowerInstalling the Java Console on a Windows system Navigate to the folder that contains the RPMsSoftware requirements for VCS Simulator Installing VCS SimulatorInstalling VCS Simulator on Unix systems Installing VCS Simulator on Windows systemsReviewing the installation Checking licensing information on the system Verifying the cluster after installationSee About verifying the VCS installation on Verifying and updating licenses on the system# hastop -all -force Updating product licenses using vxlicinstReplacing a VCS demo license with a permanent license # cd /opt/VRTS/bin# hastart Accessing the VCS documentationTo access the VCS documentation Start VCS on each nodeAbout configuring VCS clusters for data integrity Configuring VCS clusters for data integritySee About data disks on About I/O fencing componentsAbout data disks About coordination points1illustrates the tasks involved to configure I/O fencing About setting up disk-based I/O fencingWorkflow to configure disk-based I/O fencing I/O fencing configuration files include Preparing to configure disk-based I/O fencing # fdisk -l Initializing disks as VxVM disksLibnamevidpid # vxddladm listsupport allIdentifying disks to use as coordinator disks Checking shared disks for I/O fencingExample specifies the CDS format Verifying that the nodes have access to the same disk Testing the shared disks for SCSI-3See Testing the disks using vxfentsthdw utility on Testing the disks using vxfentsthdw utility See Removing permissions for communication on# /opt/VRTSvcs/vxfen/bin/vxfentsthdw If you use rsh for communication # /opt/VRTSvcs/vxfen/bin/vxfentsthdw -nDev/sdr # vxdg -g vxfencoorddg set coordinator=on Setting up disk-based I/O fencing manuallySetting up coordinator disk groups # vxdg init vxfencoorddg sdx sdy sdzCreating I/O fencing configuration files For raw device configurationDeport the coordinator disk group Modifying VCS configuration to use I/O fencing Make a backup copy of the main.cf fileStop VCS on all nodes # /etc/init.d/vxfen start Verifying I/O fencing configuration# hacf -verify /etc/VRTSvcs/conf/config Start VCS# vxfenadm -d Removing permissions for communicationPage About the LLT and GAB configuration files About verifying the VCS installationGalaxy Nebula About the VCS configuration file main.cf Sample main.cf file for VCS clusters Page Sample main.cf file for global clusters ClusterAddress = Gcoip requires csgnic Wac requires gcoipApplication wac IP gcoip NIC csgnic Verifying LLT, GAB, and cluster operation Verifying the LLT, GAB, and VCS configuration filesVerify the content of the configuration files See Setting the Path variable onOutput on nebula resembles Verifying LLTSee Verifying the cluster on Output on galaxy resemblesEth1 UP Output resembles Verifying GABVerifying the cluster Verifying the cluster nodes Current Eth1 UP eth2 UP Adding a node to a cluster About adding and removing nodesSee Adding a license key on Setting up the hardwarePreparing for a manual installation when adding a node See Mounting the product disc on Installing VCS RPMs for a manual installationAdding a license key Checking licensing information on the systemSLES10/ppc64, required Rpms See Setting up VCS related security configuration on Setting up the node to run in secure modeSee Configuring LLT and GAB on See Configuring the authentication broker on node saturn onConfiguring the authentication broker on node saturn Setting up VCS related security configuration Configuring LLT and GABOn the new system, run the command # /sbin/lltconfig -cIf the file on one of the existing nodes resembles To verify GAB On the new node, run the command Adding the node to the existing clusterAdd the new system to the cluster Start VCS on the new node Removing a node from a clusterStarting VCS and verifying the cluster Stop VCS on the new nodeVerifying the status of nodes and service groups Deleting the departing node from VCS configuration Check the status of the systems and the service groups# hastatus -summary # hagrp -switch grp3 -to nebula # hagrp -dep# haconf -makerw # hagrp -unlink grp4 grp1 # hagrp -delete grp4 Save the configuration, making it read onlyCheck the status Delete the node from the clusterRemoving security credentials from the leaving node Modifying configuration files on each remaining node# rpm -qa grep Vrts Stop GAB and LLTTo determine the RPMs to remove, enter # /etc/init.d/gab stop # /etc/init.d/llt stop# rm /etc/llttab # rm /etc/gabtab # rm /etc/llthosts Remove the LLT and GAB configuration filesCreating a single-node cluster using the installer program About installing VCS on a single nodeSee Starting the software installation on Preparing for a single node installationStarting the installer for the single node cluster Tasks to create a single-node cluster using the installerSet the path variable Installing the VCS software manually on a single nodeCreating a single-node cluster manually See Licensing VCS on# hastart -onenode Renaming the LLT and GAB startup filesModifying the startup files Verifying single-node operationAdding a node to a single-node cluster Installing VxVM or VxFS if necessary Setting up a node to join the single-node clusterBringing up the existing node Configuring the shared storageSee Setting up shared storage on Display the service groups currently configuredRename the GAB and LLT startup files so they can be used Configuring LLTFreeze the service groups Stop VCS on Node aSee LLT directives on Setting up /etc/llthostsSetting up /etc/llttab LLT directivesAdditional considerations for LLT LLT directivesDirective Description Starting LLT and GAB Configuring GAB when adding a node to a single node clusterReconfiguring VCS on the existing node Reconfigure VCS on the existing nodesVerifying configuration on both nodes Verify that VCS is up on both nodes Unfreeze the service groupsImplement the new two-node configuration Start the VCS on Node BPage About the uninstallvcs program Preparing to uninstall VCSSee About adding and removing nodes on Uninstalling VCS 5.0 RU3 # cd /opt/VRTS/install # ./uninstallvcsRemoving VCS 5.0 RU3 RPMs Running uninstallvcs from the VCS 5.0 RU3 disc Uninstallvcs program is not available in /opt/VRTS/install Following checklist is to configure LLT over UDP Using the UDP layer for LLTWhen to use LLT over UDP Configuring LLT over UDPSee Broadcast address in the /etc/llttab file on Link command in the /etc/llttab fileSee Sample configuration links crossing IP routers on Broadcast address in the /etc/llttab fileTable A-2describes the fields of the set-addr command Set-addr command in the /etc/llttab fileConfiguring the netmask for LLT Selecting UDP ports# setparms ipaddress # cat /etc/llttab Configuring the broadcast address for LLTSample configuration direct-attached links For second network interfaceFile for Node 1 resembles UDPFigure A-2 Sample configuration links crossing IP routers/etc/llttab file on Node 0 resembles Performing automated VCS installationsOr, in the case of a list Syntax in the response fileExample response file Or, in the case of an integer valueTable A-3 Response file variables Variable Description Response file variable definitions$CPICFGOPTLICENSE $CPICFGOPTPKGPATH $CPICFGKEYS Table A-3 $CPICFGOPTUNINSTALL See Installing and configuring VCS 5.0 RU3 on# ./installvcs -responsefile /tmp/installvcs-uui.response Index GAB RAM VCS