[ovirt-users] reinstallation information

Hi, after a blackout one host of my ovirt not working properly. I tried to Reinstall it but ends with the following error "Failed to install Host ov1. Failed to execute stage 'Closing up': Failed to start service 'vdsmd'." I tried to start manually but it not start . Now, I would like to reinstall from iso ovirt node. After I put the host is in maintenance must I remove host from the cluster (Hosts -> host1 -> Remove) or I can reinstall without remove it? If I remore it from the cluster the network configurations I lose them or not? My ovirt version is oVirt Engine Version: 4.1.9.1-1.el7.centos.