Hi Martin, Keep in mind this is a single host.. so.. is there a command line operation I can run from the host to snapshot the running engine VM? Then if then update fails I can revert (by command line) the running VM from before the update. I don't mind getting my fingers dirty if I have to script it. I've used the "engine-backup" tool, but frankly IMHO a snapshot is a better way to handle an immediate update, rather than having to completely re-install the VM and restore from backup. This operation is exactly why snapshots exist. :) Thanks, -derek On Fri, November 18, 2016 3:33 am, Martin Sivak wrote:

Hi Derek,

I do not think we support snapshots of the hosted engine VM at the moment. There would be no way to restore from snapshot anyway in case of failed upgrade (no engine would be running).

Please use the standard backup/restore procedures for the engine: https://access.redhat.com/documentation/en/red-hat-virtualization/4.0/paged/...

Best regards

-- Martin Sivak SLA / oVirt

On Fri, Nov 18, 2016 at 3:58 AM, Derek Atkins <derek@ihtfp.com> wrote:

...

I'm running ovirt 4.0.4 on a single-host with (of course) self-hosted engine.

Ovirt seems to assume in many cases that there are multiple hosts around so you can manipulate one host while the engine is running on another, etc.

But in the single-host case.... how do you take a snapshot of the hosted engine? When I click on Virtual Machines -> HostedEngine and then below click on Snapshots and then Create, I get an error:

HostedEngine * Cannot create Snapshot. This VM is not managed by the engine.

So... How can one snapshot the engine (e.g. prior to updating it)?

-derek

-- Derek Atkins 617-623-3745 derek@ihtfp.com www.ihtfp.com Computer and Internet Security Consultant

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-- Derek Atkins 617-623-3745 derek@ihtfp.com www.ihtfp.com Computer and Internet Security Consultant