[ovirt-users] oVirt Manager problem

I have a problem on my oVirt manager, 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, i have increased again to 5 Gb and is refilled again. Why ? I have implemented the backup of the manager with the script backup.sh, this could be the cause of the problem ? Regards Massimo