The haagent command starts, stops, displays, and lists VCS agents. The -start and -stop options enable you to debug custom agents without having to start and stop VCS. When using the command to specify or modify an attribute’s value that begins with a dash (“-“), precede...
Information Centers / Site Reference / Sticky posts / VCS Configurations / VCS Fundamentals / VCS How To / VCS Maintenance / VCS Migrations / VCS Troubleshooting / VCS Upgrades / Veritas Cluster Services
by Ramdev · Published September 18, 2015 · Last modified September 19, 2019
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...
Blog for Unix Admin / VCS Fundamentals / VCS Troubleshooting / Veritas Administration for unixadmin
by Ramdev · Published June 12, 2014
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...
Unix Experts / VCS How To / Veritas Cluster Services
by Ramdev · Published March 12, 2014 · Last modified March 11, 2014
Understanding VCS default Environmental Variables and their Default values will help us troubleshooting performance related issues.
Unix Experts / VCS How To / Veritas Cluster Services
by Ramdev · Published March 10, 2014 · Last modified March 1, 2014
hasys – add, modify, delete, display, or list information about a system. The hasys command allows administrators to manage information about each system. (A system is an object representing an individual computer within a cluster.)
Unix Experts / VCS How To / Veritas Cluster Services
by Ramdev · Published March 7, 2014 · Last modified March 1, 2014
The hamsg utility displays the contents of a specified log data file (LDF) in any language supported by VCS. A log data file, <file>.ldf, contains data about messages written to a corresponding English language log, <file>.log. Typically, for every English VCS log file there is a...
Unix Experts / VCS How To / Veritas Cluster Services
by Ramdev · Published February 28, 2014 · Last modified August 6, 2016
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...
Unix Experts / VCS How To / Veritas Cluster Services / VxVM Learning
by Ramdev · Published February 27, 2014 · Last modified August 6, 2016
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...
Unix Experts / VCS How To / Veritas Cluster Services
by Ramdev · Published February 25, 2014 · Last modified February 27, 2014
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...
Unix Experts / VCS Fundamentals / VCS How To / Veritas Cluster Services
by Ramdev · Published February 24, 2014 · Last modified July 23, 2016
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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