[ovirt-users] Problem on the manager

I have a problem on my oVirt managers, the problem is that the directory / var/lib/pgsql/data fills. Initially thinking that my file system /var/log 2Gb was too small now have increased to 4Gb and is refilled. How can I prevent this from happening, it may be due to the fact that I have implemented the backup manage with the script of backup.sh oVirt. Regards Massimo