Hi Didi Fair enough. If I'm in this situation..... I have 3 hosts with 6 production VMs. The hosted-engine VM is completely toast and not recoverable. However I have a backup of the hosted-engine database (do I need anything else). Is it possible to build a new VM, import the backup of the previous hosted-engine database and reconnect the storage domains and VMs in their running state without any VMs experiencing an outage? The URL http://www.ovirt.org/documentation/self-hosted/chap-Backing_up_and_Restoring... looks to be longer now. I'll review, test and see if this will give me what I'm looking for. The broken link still seems to be broken. When I click the link, the browser ends up at this http://www.ovirt.org/documentation/self-hosted/chap-Backing_up_and_Restoring... But I suspect it should be http://www.ovirt.org/documentation/self-hosted/chap-Installing_Additional_Ho... Kind regards Andrew ------ Original Message ------ From: "Yedidyah Bar David" <didi@redhat.com> To: "Andrew Dent" <adent@ctcroydon.com.au> Cc: "users" <users@ovirt.org> Sent: 3/07/2017 11:12:05 PM Subject: Re: [ovirt-users] Recovering hosted-engine
On Mon, Jul 3, 2017 at 3:46 PM, Andrew Dent <adent@ctcroydon.com.au> wrote:
Has anyone successfully completed a hosted-engine recovery on a multiple host setup with production VMs?
I'd like to clarify that "recovery" can span a large spectrum of flows, from a trivial "I did some change to the engine database that broke stuff and I want to restore a backup I took prior to this change" to a full system restoration including purchasing and deploying new (perhaps different) hosts/network/storage hardware, including many other flows in between.
So when you plan for recovery, you should define very well what flows you plan to handle, and how you handle each.
The linked procedure correctly says it's "providing an example".
Kind regards
Andrew
------ Original Message ------ From: "Andrew Dent" <adent@ctcroydon.com.au> To: "users" <users@ovirt.org> Sent: 2/07/2017 2:22:16 PM Subject: [ovirt-users] Recovering hosted-engine
Hi
A couple of questions about hosted-engine recovery. Part way through this URL, in the section "Workflow for Restoring the Self-Hosted Engine Environment"
http://www.ovirt.org/documentation/self-hosted/chap-Backing_up_and_Restoring... it looks like once the hosted-engine is recovered on Host 1, the VMs on Host 2 and 3 will be running, but not accessible to the recovered Hosted Engine. Is that correct?
I am pretty certain that the procedure assumed that all hosts need restoration, not that some are still up-and-running.
If so, how to you remove host 2 and host 3 from the environment, then add back in again while keeping the VMs running?
That's a good question.
Please try to describe the exact flow you have in mind. What's broken and needs restoration, and how do you plan to do that?
Host 2 and Host 3 are not recoverable in their current state. These hosts need to be removed from the environment, and then added again to the environment using the hosted-engine deployment script. For more information on these actions, see the Removing Non-Operational Hosts from a Restored Self-Hosted Engine Environment section below and Chapter 7: Installing Additional Hosts to a Self-Hosted Environment.
BTW: The link referring to chapter 7 is broken.
You are right. The link in the bottom of the page seems working. Now pushed [1] to fix. Thanks for the report!
[1]
Best, -- Didi