OpenVZ allows you to configure settings for the physical server in general and for each container in particular. Among these settings are disk and user quotas, network parameters, default file locations, sample configuration files, and other.
OpenVZ stores all OS virtualization-related configuration information in the global configuration file /etc/vz/vz.conf. It defines container parameters like the default OS templates, disk quotas, logging, and so on.
The configuration file is read when the OpenVZ software and/or containers are started. However, many settings can also be changed on the fly by means of OpenVZ standard utilities like prlctl, with or without modifying the corresponding configuration file to keep the changes for the future.
