[ovirt-users] oVirt 3.6 to 4.0 Upgrade

Brett I. Holcomb biholcomb at l1049h.com
Mon Jun 27 01:12:58 UTC 2016


Yes, that makes sense.  Thanks.



On 06/26/2016 10:00 AM, Christophe TREFOIS wrote:
>
> Hi,
>
> For CentOS 7, I set the host in global maintenance, and then upgrade 
> the engine.
>
> After that, reboot cleanly the engine and set the maintenance back to 
> none.
>
> Then you should update the host itself. To do that, you are strongly 
> advised to shutdown the VMs first.
>
> If sanlock or vdsm get upgraded in the process, all your VMs will be 
> terminated anyway, and this oculd lead to bad results.
>
> So if you don’t have another host, shutdown everything except engine, 
> set to maintenance global, update engine, reboot engine, shutdown 
> engine, update host, and then set maintenance back to none.
>
> Does that make sense?
>
> *From:*users-bounces at ovirt.org [mailto:users-bounces at ovirt.org] *On 
> Behalf Of *Yaniv Dary
> *Sent:* dimanche 26 juin 2016 14:43
> *To:* biholcomb at l1049h.com
> *Cc:* users <users at ovirt.org>
> *Subject:* Re: [ovirt-users] oVirt 3.6 to 4.0 Upgrade
>
> What OS are you running the engine on?
>
>
> Yaniv Dary
> Technical Product Manager
> Red Hat Israel Ltd.
> 34 Jerusalem Road
> Building A, 4th floor
> Ra'anana, Israel 4350109
> Tel : +972 (9) 7692306
>         8272306
> Email: ydary at redhat.com <mailto:ydary at redhat.com>
> IRC : ydary
>
> On Sun, Jun 26, 2016 at 7:54 AM, Brett I. Holcomb 
> <biholcomb at l1049h.com <mailto:biholcomb at l1049h.com>> wrote:
>
>     In order to not hijack another thread I wanted to separate this
>     from the "latest CentOS libvirt updates safe?" thread since this
>     is different than what the OP on that thread wants to do.
>
>     I've been digging through the 4.0 documentation since I'd like to
>     upgrade in the not to distant future so I'm doing research and I'm
>     confused.
>
>     I'm running 3.6.6 in a hosted Engine environment.  My engine runs
>     in a vm on the host.  The host is a physical box and the VMs are
>     stored on a NAS accessed by an iSCSI LUN,  I have no other hosts
>     running so I can not migrate.
>
>     According to this link, https://www.ovirt.org/release/4.0.0/, I'm
>     told to simply run yum update ovirt-engine-setup and then
>     engine-setup but I assume that's for a non hosted-engine
>     environment.  I then go to the link for
>     Hosted_Engine_HOwto#Upgrade_Hosted_Engine guide and am told to do
>     this.
>
>     Set hosted-engine maintenance mode to global and other stuff that
>     is written assuming I have some place to migrate my VMs to.  I do
>     not have another host.
>
>     So how do I properly move to oVirt 4.0 from 3.6.6 on a single
>     physical host running a hosted Engine VM?
>
>     Thanks.
>
>
>
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