Veritas Volume Manager Overview

Veritas Volume Manager divides disks into disk groups and partitions these groups as desired. There is a nice GUI which helps alot. You can even pull up a command window to see what the gui is running. The newest version of the gui is vmsa.

General Commands:

• Veritas Volume Manager licenses info:
• • /usr/sbin/vxlicense -p
• What volume groups:
• • vxdg list
• Import volume group (see details on cluster debugging)
• • vxdg import oradg
• Specific voulme group info:
• • vxprint -ht
• What is veritas doing (if running another command and it is hanging)
• • vxtask list

An excellent reference book for Veritas Clusters is: 

Shared Data Clusters: Scaleable, Manageable, and Highly Available Systems (VERITAS Series) - this will provide you with the background knowledge of how clusters work, how to get the best performance from your cluster, and more.