[ovirt-users] ovirt 3.5.5 to 4.x

[Demeter Tibor]

Hi, 
Thank you for your reply. 

I have a short plan for the migration, but I have some question about it. Please correct me if something wrong. 

- I will install ovirt nodes to the new machines. 
- I would like to use same storage, so i will make an new NFS export for the new ovirt-engine. 
- I will make hosted engine setup that will placed on the new nfs share. 
- I want to come some new features , like vlans and new IP range for engine, management, etc, so I will make these settings on the new setup 
- This is the point where I will stop the whole old system. I have to stop VM-s, disconnect storge from old cluster and I will attach to the new cluster. 
- This is the point, where I'm not sure in all things. If I had attach to the new cluster, the VM-s will show on the new ovirt-engine? What about the settings for example, memory, cpu, etc? It will be came from storage? Or I have to recreate these settings on every VM-s? 
- Need I'm doing other things, or it will be enought to start vms in the new cluster? 

Thanks in advance. 

Regards, 

Tibor 

----- 2016. nov.. 15., 16:45, Yaniv Dary <ydary at redhat.com> írta: 

> Yes, this is possible, since import storage domain exists since oVirt 3.5.
> Doing a test is always advised due.

> Yaniv Dary
> Technical Product Manager
> Red Hat Israel Ltd.
> 34 Jerusalem Road
> Building A, 4th floor
> Ra'anana, Israel 4350109

> Tel : [ tel:%2B972%20%289%29%207692306 | +972 (9) 7692306 ] 8272306
> Email: [ mailto:ydary at redhat.com | ydary at redhat.com ] IRC : ydary

> On Tue, Nov 15, 2016 at 4:37 PM, Demeter Tibor < [ mailto:tdemeter at itsmart.hu |
> tdemeter at itsmart.hu ] > wrote:

>> Dear users,

>> We have an ovirt cluster with three nodes and centralized storage.(nfs based).
>> The clusters based on centos6 os.

>> We bought some new server for more resources, but we want to upgrade to 4.0 . Is
>> it possible to make brand new install and import all of VM-s from storage?
>> The storage will be remain, so I just wondering, I will make a clean install and
>> connect the storage to this cluster.
>> Is it possible?

>> We don't have users, or special settings on this cluster, but I don't want to
>> make the difficult upgrade process from 3.5 to 4.x and centos 6 to 7.

>> What is our possibilities?

>> Thank in advance,

>> Regards,

>> Tibor.

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