SSH to the master server and run the following command:

/usr/sbin/vzlist -a

The -a switch tells the vzlist utility to output both running and stopped VPSs. By default, only running VPSs are shown. The default columns inform you of the VPS IDs, the number of running processes inside VPSs, their status, IP addresses, and hostnames. This output may be customized as desired by using vzlist command line switches. For example:

vzlist -o veid,diskinodes.s -s diskinodes.s