Well, I'll be creative and I'll suggest you the following idea.
There is an option to add a glance image server to RHEV as an external provider.
This new feature allows you to export disks (not VMs) to the glance image repository while
the VM which the disk is attached to is running.
As for the VM configuration (which is not part of the disk that will be exported to the
glance server), there is an option (which was introduced in RHEV3.3) to create a VM from a
configuration file (OVF) of another VM.
Dafna, Fede, Liron, Itamar, please back me up here. Will it be possible to perform those
actions? Can we suggest this idea to the customer?
----- Original Message -----
From: "Tobias Fiebig" <mail(a)wybt.net>
To: "Elad Ben Aharon" <ebenahar(a)redhat.com>
Cc: "Users(a)ovirt.org List" <Users(a)ovirt.org>
Sent: Thursday, January 16, 2014 6:47:54 PM
Subject: Re: [Users] Attach NFS storage to multiple datacenter
Heho,
Unfortunately yes, you'll suffer from a down time during this
process.
Well, as the downtime could be significantly decreased/the comfort for
an "migrate one vm, then the next" largely increased, if an nfs storage
could be mounted on multiple datacenters simultaneous i wonder if such a
feature is planed?
Main concern for me is that it might not really fit into the current way
of handling storage in ovirt.
With best Regards,
Tobias