Hi all, Using ovirt-node-iso-2.6.1-20120228.fc18.iso (2012 seems to be a typo, must be 2013?) is logging with too much debugging. Changing all the"DEBUG" to "WARNOMG" in /etc/vdsm/logger.conf and "persist /etc/vdsm/logger.conf" solved it for /var/log/vdsm/vdsm.log. However, /var/log/libvirtd.log also shows tons of debug messages. The file /etc/libvirt/libvirtd.conf shows: listen_addr="0.0.0.0" unix_sock_group="kvm" unix_sock_rw_perms="0770" auth_unix_rw="sasl" host_uuid="06304eff-1c91-4e1e-86e2-d773621dcab3" log_outputs="1:file:/var/log/libvirtd.log" ca_file="/etc/pki/vdsm/certs/cacert.pem" cert_file="/etc/pki/vdsm/certs/vdsmcert.pem" key_file="/etc/pki/vdsm/keys/vdsmkey.pem" Changing log_outputs="1:file:/var/log/libvirtd.log" to "log_outputs="3:file:/var/log/libvirtd.log" with persist (or unpersist first, thn persist) doesn't help. After a reboot log_outputs="1:file:/var/log/libvirtd.log" will appear again. How to decrease the log level for libvirtd? Kind regards, Winfried