> > >> Dear All: >>     My ovirt engine managed two vdsms with nfs storage on another nfs server, it worked fine about three months.   >> One of host (host_1.3; ip:172.18.1.3) was created about 16 vms, but the host_1.3 was shutdown unexpectly about 2019-12-23 16:11, when re-started host and vms;  half of the vms was lost some configure or changed , such as lost theirs ip etc.(the vm name is 'zzh_Chain49_ACG_M' in the vdsm.log) >> >>     the vm zzh_Chain49_ACG_M was create by rest API through vm's templated . the template  is 20.1.1.161; the vm zzh_Chain49_ACG_M was created by ovirt rest api and changed the ip to 20.1.1.219 >> by ovirt rest api. But the ip was changed to templated ip when the accident happened. >>      >>     the vm's os is centos. >> >>     Hope get help from you soon, Thank you. >> >> Mark >>    Sincerely.