Hi, yesterday I exported all my VM's and reinstalled the host fresh as hosted-engine installation. After importing one VM and starting this, it gaves me the error message (engine.log) see below. After researching what "numa" means I don't have a clue what this should mean or what was configured wrong. It's only one Server followed this [1] instruction. ... 2016-10-04 06:34:30,719 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (DefaultQuartzScheduler4) [66e4bd80] Correlation ID: null, Call Stack: null, Custom Event ID: -1, Message: VM webserver is down with error. Exit message: unsupported configuration: At least one numa node has to be configured when enabling memory hotplug. 2016-10-04 06:34:30,731 ERROR [org.ovirt.engine.core.vdsbroker.monitoring.VmsMonitoring] (DefaultQuartzScheduler4) [66e4bd80] Rerun VM 'b5947250-77d3-46d2-a8c6-cdd9072bb558'. Called from VDS 'host' 2016-10-04 06:34:30,933 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (org.ovirt.thread.pool-8-thread-49) [66e4bd80] Correlation ID: 7e9dded6, Job ID: 63c37b21-c3f4-40da-9eb2-fe98e824827c, Call Stack: null, Custom Event ID: -1, Message: Failed to run VM webserver (User: admin@internal-authz). ... cheers gregor [1] https://www.ovirt.org/documentation/how-to/hosted-engine/