Veritas Volume Manager (VxVM) uses logical volumes to organize and manage disk space. A volume is made up of portions of one or more physical disks, so it does not have the limitations of a physical disk.
Review the volume configuration guidelines before creating volumes.
See Volume configuration guidelines for deploying DB2.
The following is an example of creating a volume using the vxassist command:
To create a 1 GB volume called db01 on the PRODdg disk group:
#/opt/VRTS/bin/vxassist -g PRODdg make db01 1g PRODdg01