[ovirt-users] VM migrations via san replication?

Yaniv Dary ydary at redhat.com
Sun May 22 11:16:47 UTC 2016

You will need at least 3.5 to import the storage and you should also handle
the consistency if any VMs on the storage are up.

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

Tel : +972 (9) 7692306
Email: ydary at redhat.com
IRC : ydary

On Thu, Apr 14, 2016 at 9:32 PM, At Work <workingindustriously at gmail.com>

> I have a question regarding migration of VMs.  It's my hope that someone
> can tell me if my migration idea can work or if it is not possible
> I want to migrate about 100-200 VMs from one oVirt deployment to a new
> oVirt deployment.  Some of the VMs are over 3TB in size.  Exporting and
> importing these via NFS would involve downtime and probably be a very
> lengthy process.  I'm wondering if there's a way to get around this by
> using san replication.
> I have an equallogic san group currently in use by an oVirt
> installation 3.4.0-1.el6.  I have a different equallogic group set up as
> storage for a different oVirt installation on another network.  The new
> oVirt installation is version
> My idea is to avoid the downtime and lengthy export/import process by
> telling my current production san to do volume replication to the new san
> that's been allocated for use as storage for our new oVirt installation.
> Once replication is in sync, I'll have exact copies of the original iSCSI
> volumes, VM's, metadata, etc.  I am hoping I can then break replication,
> tell my new oVirt installation to log into the freshly-copied volumes, and
> use the VMs that were previously in use on the other installation.
> Due to the differences in oVirt versions and not knowing how oVirt
> internally handles metadata, I am not sure if this is possible.  Can anyone
> confirm if this will work or not?
> Thank you all!
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