For pre-existing VMs you have to enable it in the VM-Edit dialog first.
Edit VM - Show Adv. Options - Resource Alloc. - Virtio-SCSI Enabled
After that step you can change your disk from IDE/Virtio to Virtio-SCSI
-----Original message-----
From:Gianluca Cecchi <gianluca.cecchi(a)gmail.com>
Sent: Friday 22nd November 2013 23:55
To: Itamar Heim <iheim(a)redhat.com>
Cc: users <users(a)ovirt.org>
Subject: Re: [Users] info on virtio-scsi
On Fri, Nov 22, 2013 at 10:49 PM, Itamar Heim wrote:
>
> oh, that's strange.
> derez/roy - no virtio-iscsi definition for .el6 VM?
Actually I don't think so.
I have tried creating a new rh el 6.x x86_64 vm and at disk creation I
do see virtio-scsi as an option.
But for this preexisting VM I don't see it when I try to add. Tried
both in powered on state and in powered off.
See here difference between c6 and c5 dynamic xml in /var/run/libvirt/qemu
https://drive.google.com/file/d/0BwoPbcrMv8mvemtSalRkTTZlV1k/edit?usp=sha...
And here for qemu command line generated:
https://drive.google.com/file/d/0BwoPbcrMv8mvOHZrTHduN1ZCUFU/edit?usp=sha...
Gianluca
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