VERITAS Cluster Server (VCS) from Symantec connects multiple, independent systems into a management framework for increased availability. Each system, or node, runs its own operating system and cooperates at the software level to form a cluster. VCS links commodity hardware with intelligent software to provide application failover and control. When a node or a monitored application fails, other nodes can take predefined actions to take over and bring up services elsewhere in the cluster.
Below are the efforts and challenges we had while Installing Veritas Cluster Suite on a Redhat Linux Server.
Pre-requisites for Installing Veritas Cluster Server Suite 6.0.2 on Redhat Linux 6.4
- 2 Nodes, RHEL6.4 in this case.
- 3 Nics on each node.
- Shared Storage.
- Add both node name in /etc/hosts file and they should be communicate between each other.
- VCS setup, I have used: VRTS_SF_HA_Soolutions_6.0.2_RHEL.tar
Installation Steps include:
- The first thing is to copy the VCS setup file VRTS_SF_HA_Soolutions_6.0.2_RHEL.tar on one of the node and untar it.
- cd /dvd1-redhatlinux/rhel6_x86_64
- Run the installer script which sparks the installation
The installation has been completed. Run the command /opt/VRTS/install/installsfha602 -configure in order to start configuring it.
vxportal, fdd and vxodm failed to start because of the rpm VRTSvxfs failed earlier during the installation. After digging around, we find out the reason is kernel incompatibility issues between the RHEL 6.4 and VCS 6.0.2. In order to fix it, we downloaded a patch from internet: https://sort.symantec.com/patch/detail/8227 and downloaded the patch fs-rhel6_x86_64-22.214.171.1240-rpms.tar.gz
The VCS Installation has been completed succesfull. You can login and verify cluster related information on any node using following commands.
# lltstat -nvv |less # gabconfig -a
Now, the cluster has been configured and try creating service group, disk group resource, volume, filesystem resource and application resource and see hows the cluster works.