Re: [ovirt-users] Snapshot self-hosted engine?

[Derek Atkins]

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/self-hosted-engine-guide/chapter-6-backing-up-and-restoring-a-rhel-based-self-hosted-environment
>
> Best regards
>
> --
> Martin Sivak
> SLA / oVirt
>
> On Fri, Nov 18, 2016 at 3:58 AM, Derek Atkins  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
>>de...@ihtfp.com www.ihtfp.com
>>Computer and Internet Security Consultant
>>
>> ___
>> Users mailing list
>> Users@ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>


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

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[ovirt-users] Snapshot self-hosted engine?

[Derek Atkins]

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
   de...@ihtfp.com www.ihtfp.com
   Computer and Internet Security Consultant

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