Installing VERITAS Cluster Server

Topic 1: Using the VERITAS Product Installer After completing this topic, you will be able to install VCS using the VPI utility.

Using the VERITAS Product Installer The VERITAS product installer, the recommended installation procedure for VCS:  Performs environment checking to ensure that prerequisites are met  Enables you to add product licenses  Is started from the installer file in the CD mount point directory  Runs the installvcs utility  Logs user input and program output to files in: /opt/VRTS/install/logs

The installvcs Utility The installvcs utility, called by the product installer:  Uses the platform-specific operating system command to install the VCS packages on all the systems in the cluster  Configures Ethernet network links for the VCS communications interconnect  Brings the cluster up with the ClusterService group, which manages the VCS Web GUI (if configured during installation) The installvcs utility requires remote root access to other systems in the cluster while the script is being run. The /.rhosts file: You can remove.rhosts files after VCS installation. ssh : No prompting is permitted. The installvcs utility requires remote root access to other systems in the cluster while the script is being run. The /.rhosts file: You can remove.rhosts files after VCS installation. ssh : No prompting is permitted.

Install VCS packages. Configure VCS. Automated VCS Installation Procedure Invoke installer Enter license keys. Select optional packages. Configure SMTP and SNMP notification. Start VCS. Configure the cluster (name, ID, interconnect). Configure the Web GUI (device name, IP address, subnet mask). User input to the script What the script does Enter system names. Verify communication and install VERITAS infrastructure packages. Set up VCS user accounts. Select root broker node.

Installing VCS Updates  Check for any updates before proceeding to configure your cluster:  Updates are usually provided as patches or maintenance packs.  Read the installation instructions included with the update to ensure that all prerequisites are met before you start the installation process.

Topic 2: VCS Configuration Files After completing this topic, you will be able to display the configuration files created during installation.

VCS File Locations Configuration files for the cluster interconnect /etc VCS engine and agent log files /var/VRTSvcs/log Apache servelet engine for Web GUI /opt/VRTSvcs/gui/ conf Cluster configuration files /etc/VRTSvcs/conf /config Executables, scripts, libraries /sbin, /usr/sbin, /opt/VRTSvcs/bin ContentsDirectories

 LLT configuration files: –/etc/llttab Specifies the cluster ID number, the host name, and the LLT network interfaces used for the cluster interconnect –/etc/llthosts Lists the host names of each cluster system with its corresponding LLT node ID number  GAB configuration file: /etc/gabtab Specifies how many systems are members of the cluster and starts GAB Communication Configuration Files

VCS configuration files  /etc/VRTSvcs/conf/config/types.cf  /etc/VRTSvcs/conf/config/main.cf include "types.cf" cluster VCS ( … ) system train1 ( ) system train2 ( ) group ClusterService ( … ) IP webip ( Device = eri0 Address = " " NetMask = " " ) … Cluster Configuration Files Cluster Name Information entered for Web-based Cluster Manager All the systems where VCS is installed All the systems where VCS is installed Solaris

Topic 3: Viewing the Default VCS Configuration After completing this topic, you will be able to view the VCS configuration created during installation.

Viewing Status View LLT status: # lltconfig llt is running View GAB status: # gabconfig -a GAB Port Memberships ================================ Port a gen a36e003 membership 01 Port h gen fd57002 membership 01 View VCS status: # hastatus –sum -- System State Frozen A S1 RUNNING 0 A S2 RUNNING 0

Topic 4: Other Installation Considerations After completing this topic, you will be able to describe other components to consider at installation time.

I/O Fencing Considerations I/O Fencing is the recommended method for protecting shared storage in a cluster environment.  Configure fencing after initial VCS installation if: –Your shared storage devices support SCSI-3 Persistent Reservations; and –You installed a 4.0 or later version of VCS; and –You are using Volume Manager 4.0 or later.

Lab 4: Installing VCS node1 node2 #./installer vcs1 Link 1:______ Link 2:______ Software location:_______________________________ Subnet:_______ Link 1:______ Link 2:______ Public:______ 4.x #./installvcs Pre-4.0