Re: [ovirt-users] Can HA Agent control NFS Mount?

From: "Bob Doolittle" <bob(a)doolittle.us.com&gt; To: "Doron Fediuck" <dfediuck(a)redhat.com&gt;, "Andrew Lau" <andrew(a)andrewklau.com&gt; Cc: "users" <users(a)ovirt.org&gt;, "Jiri Moskovcak" <jmoskovc(a)redhat.com&gt;, "Sandro Bonazzola" <sbonazzo(a)redhat.com&gt; Sent: Monday, May 26, 2014 6:12:04 PM Subject: Re: [ovirt-users] Can HA Agent control NFS Mount? On 05/26/2014 02:38 AM, Doron Fediuck wrote: > Great to have your feedback guys! > > So just to clarify some of the issues you mentioned; > > Hosted engine wasn't designed for a 'single node' use case, as we do > want it to be highly available. This is why it's being restarted > elsewhere or even on the same server if no better alternative. I hope you will keep this configuration in your design space as you move forward. As you can see it is likely to be a popular one. At a previous employer, everybody in our development group had a single (powerful) machine running VMware vSphere, with a hosted vCenter, to use as a development VM testbed. It's likely to be popular for people with few resources who want to run in a fully supported configuration. HA is great, but not every environment has the resources/requirement to support it. oVirt has a lot to offer even a leaner environment and I hope those environments continue to get attention as the product matures. For example, I hope there is a reasonable story around upgrades to future releases for single-node hosted configurations. > Having said that, it is possible to set global maintenance mode > as a first step (in the UI: right click engine vm and choose > ha-maintenance). > Then you can ssh into the engine vm and init 0. What is the recipe for a clean startup after shutdown? Can we do 'hosted-engine --vm-start' while the system is in Global Maintenance mode? Thanks, Bob