Category: Veritas Cluster Services

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  VCS for Beginners Read – VCS for Beginners – Getting Started with VCS Read – VCS for Beginners– Cluster Membership & IO Fencing Read – VCS for Beginners – Understand Jeopardy Condition with real time scenerio Read – VCS for Beginners – Configuring Veritas Cluster...


VCS : Configure GAB manually

    VCS uses the Group Membership Services/Atomic Broadcast (GAB) protocol for cluster membership and reliable cluster communications. GAB has two major functions. It handles the following tasks: Cluster membership Cluster communications       To configure GAB Set up an /etc/gabtab configuration file on each...


VCS 6.1 : How to Configure vxfen driver for cluster I/O fencing using vxfenconfig?

The vxfenconfig command configures the vxfen driver using parameters found in /etc/vxfenmode file. For a list of possible parameters and usage information please see the manpage for /etc/vxfenmode file. If this file is omitted I/O Fencing defaults to SCSI3 functionality. vxfenconfig command configures the vxfen driver...


VCS 6.1 : How to manage SCSI-3 disk registrations and reservations for I/O fencing using vxfenadm and vxfenclearpre?

  vxfenadm: The vxfenadm utility enables the vxfen driver to manage SCSI-3 registrations and reservations on disks for purposes of I/O fencing. In the event of a split-brain condition, I/O fencing allows only a system with a valid registration to write to a disk. Thus, I/O...


VCS 6.1 : How to check network connectivity among Cluster nodes using lltping?

The lltping utility exchanges network traffic over a cluster to test the LLT network connectivity. A host on the network can run an instance of lltping in server mode to reflect packets from the other hosts. An instance of lltping in client mode can then be...


VCS 6.1 : How to Administrate VCS Service Groups using the hagrp

A service group is an instance of a computer service that is made highly available with VCS. A group comprises one or more resources of various resource types, such as disks, volumes, or databases. Use the hagrp command to view information about and manage each group


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