To set disk space, run the following commands:

  vzctl set CTID --diskspace $SoftLimit$:$HardLimit$ --save

Example:

[host-node]# vzctl set 101 --diskspace 6G:7G --save

You could verify the space available with this command (ieĀ : CTID =101)

[host-node]# vzctl exec 101 df -h

If you want remove disk quota:

DISK_QUOTA=no

This is also possible via this option:

DISKSPACE="unlimited"