[ovirt-users] Self hosted engine and upgrade path to 3.6.1 CentOS 7.2 with single host

[Sandro Bonazzola]

On Thu, Dec 17, 2015 at 8:31 AM, Gianluca Cecchi <gianluca.cecchi at gmail.com>
wrote:

> Hello,
> having a self hosted engine environment in 3.6.0 and both host and engine
> VM in CentOS 7.1, and having only one single host, now that both CentOS 7.2
> and 3.6.1 have been released, what would be the correct path/approach?
>
> I have a test system with an NFS storage domain and some VMs on it, to try
> on before and then report, but if I get a confirmation/suggestion in
> advance is preferable.
>
> This is my idea, adapting what described at:
> http://www.ovirt.org/Hosted_Engine_Howto#Upgrade_Hosted_Engine
>
> - set hosted engine maintenance mode to global
> - upgrade engine VM both to 3.6.1 and CentOS 7.2 with:
>  # yum update "ovirt-engine-setup*"
>  # yum update
>  # engine-setup
> - reboot engine VM and verify correct access
>
> No what if I want to update the host too?
> - shutdown the VMs in my Datacenter
> Can I put the only existing host into maintenance? Would this shutdown the
> engine vm too or is it separate in terms of maintenance of the host?
>
>
You can't put the only existing host in maintenance since Hosted Engine is
running on it and it can't migrate



> Or should I simply
> - shutdown the VMs in my Datacenter
> - shutdown engine VM
> - stop vdsmd on host
> - update host to both CentOS 7.2 and oVirt 3.6.1 packages with:
>   # yum update
> - reboot host
> - verify vdsmd is ok
> - exit the global maintenance mode and wait for a few minutes the engine
> VM should on this fresh upgraded host
> - hopefully the host will come up again as active and I can start my VMs
> ?
>
>

- shutdown the VMs in your Datacenter
- move the host to local maintenance
- shutdown engine VM
- yum update
- reboot
- exit maintenance



> Thanks in advance for any help and clarification
>
> Gianluca
>
>
>
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>


-- 
Sandro Bonazzola
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