[ovirt-users] Re: vm autostart and priorities

On Thu, Feb 7, 2019 at 1:59 PM Greg Sheremeta <gshereme(a)redhat.com&gt; wrote: We need to split the problems in two: - the first step is bringing oVirt engine and oVirt hosted-engine is designed for that purpose: ovirt-ha-agent will connect the storage and bring up a VM with the engine in a matter of minutes (*) - than, once you have a running engine, you can rely on the HA mechanism with VM leases and so on to restart the VMs that you need to be in HA. Please notice that at engine level you have a kind of HA priority mechanism to influence the VM boostrap order without really setting dependencies or something like that: http://ovirt.github.io/ovirt-engine-api-model/master/#types/high_availabi... Please notice that the graphical user interface (GUI) does not allow specifying all the possible values, instead it only allows you to select Low, Medium or High. If you need a finer granularity you have to set them via REST APIs. Then, in the second plane, you should also take a look to VmStorageErrorResumeBehaviour: http://ovirt.github.io/ovirt-engine-api-model/master/#types/vm_storage_er... to eventually handle the resume after storage errors. and you can also eventually define per VM watchdogs: http://ovirt.github.io/ovirt-engine-api-model/master/#services/vm_watchdog * Please notice that you should configure your env to be sure that your HE hosts and the engine VM are able to correctly start even without a properly running DHCP and DNS.