Originally Posted by MaddinXx
Therefor yes, RAM + vSWAP of all containers should not be higher than total amount of memory (= totally no overselling).
You may want to look a little deeper on this. After a response from Falko on this thread: http://www.howtoforge.com/forums/showthread.php?t=61272
And after using vzsplit, I found that RAM + vSWAP != TOTAL MEMORY
It looks to me like VSwap may be sharing the swap space between containers. If this is not the case, the only other conclusion I can come up with is that vspilt is very broken.
You can simply run the command on your hardware node, and see that the sum of just the VSwap memory exceeds the RAM in the system.