As far as I know the OpenVZ associated vzprocps-tools are just available in version 2.0.11, at least for Debian. Unfortunately they are damn buggy in this version, so unusable…

There are two smart tools included in vzprocps : vztop and vzps . These programs help you a lot dealing with processes of your running containers. But in 2.0.11 they aren’t working:

It seems that there is an update, but not available as .deb yet. Here is an example for an alternative to vzps to find zombies:

It’s a bit complicated, but you can write a small script to grep for further things..