Category: Veritas Cluster Services


VCS 6.1 – How to configure and display information about Group and Atomic Broadcast (GAB) ports

The gabport utility displays GAB port information or changes the heartbeat timeout value of a user client process on a GAB port. In normal operation, a GAB client process should heartbeat to GAB at a certain interval. GAB uses this mechanism to monitor the aliveness of...


VCS 6.1 – How to allocate two disk heartbeating resources, one for port a (the GAB control port) and one for port h (the VCS port) using gabdiskhb.

The gabdiskhb utility sets up and maintains the configuration of GAB driver heartbeat disk regions. GAB driver heartbeat disk regions provide channels in addition to the network connections for protection from network failures. These resources describe a 64K region that GAB uses to read and write...


VCS 6.1 – How to check the cluster node Heartbeat connectivity using dlpiping ?

The dlpiping utility exchanges network traffic over a specific DLPI network device to test network connectivity. Each host on the network being tested should run an instance of dlpiping in server mode to reflect packets from the other hosts. An instance of dlpiping in client mode...


VCS Learning – I/O Fencing In action [ Video ]

This post is all about the purpose of I/O fencing and how i/o fencing works to avoid the split brain condition?. Normally, I do spend  4 to 6 hours to post a technical article  with complete details, but for this one I have spent lot more...


VCS Learning : Learn about Cluster Hearbeats

Cluster heartbeat connections are important components of VCS cluster, to allow cluster to work as expected for fail over and failback operations. In this post i will be showing to some basic verification that helps unix admins to confirm the health status of the cluster heartbeats.   Once we have the...


VCS : Configuring Veritas Cluster and Configuration files

About the VCS configuration files VCS configuration files include the following: The installer creates the VCS configuration file in the /etc/VRTSvcs/conf/config folder by default during the VCS configuration. The file contains the minimum information that defines the cluster and its nodes. The file...


VCS : Sample VCS configuration with Single Oracle Instance

  Sample VCS configuration file for single Oracle instance Review the sample configuration with a resource of type Oracle that is configured as follows in file. The shared disk groups and volumes in the cluster are configured as resources of type DiskGroup and Volume respectively....


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