On Tuesday 2019-04-16 12:28:45 Dimitri Maziuk via Bacula-users wrote:
> On 4/16/19 10:27 AM, Josh Fisher wrote:
> > Running jobs will fail, but the automated "Reschedule On Error"
> > feature
> > allows restarting them after the fail-over. Also, fail-over doesn't
> > affect scheduled jobs that haven't started yet at the time of
> > fail-over. Putting the OS on DRBD and running in a VM (or container)
> > allows continuation of backup services without operator intervention.
> > What is wrong with that?
> 
> Nothing, I just doubt migrating the VM itself is all that seamless and
> stable without operator intervention. Admittedly, I have not played with
> that in years... but last I looked if you actually *failed* without an
> orderly VM shutdown, booting it up on the other node was a crap shoot.

It's working just fine even with opensource technology for years.

I used live migration of KVM virtual machines in 2010 and it worked
without problems.
While working in the virtual machine using ssh, a user wouldn't even
notice that the virtual machine was migrated.

The only problem for was a particular cluster component that was
unstable.

RHEV (RedHat Enterprise Virtualization) or oVirt solved that by
introducing a solution that didn't relay on complex and unstable
cluster components.


Regards!

-- 
Josip Deanovic


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