T= hank=3D s Itamar.

= I he=3D ard the other day that NFS v4.2 is supposed to contain server side copy, so= =3D it's possible that we might see this kind of support in one of more storag= =3D e domain available to ovirt at some stage perhaps next year (in Fedora at l= =3D east).

Is = this=3D something that Gluster will also likely provide in a subsequent release on= =3D ce we have proper gfapi support?

I'd be interested to hear if others on the list are clamouring = fo=3D r server side offload support in some form.

From: I= tama=3D r Heim
To: Paul Jans= en=3D ; users
Sent: Satu= rd=3D ay, 13 December 2014, 2:16
Subj= ec=3D t: Re: [ovirt-users] storage offload capability

On 11/13/2014 06:09 AM, Paul Jansen wrote:

> I have an ovirt 3.5 cluster set up with three el7 hosts. Stor= =3D age is
> provided by two Fedora 20 machines and the = co=3D nnection is via multipath
> iscsi.
&=3D gt; The performance is quite good. The Fedora 20 iscsi targets are us= =3D ing
> the 'target' (ie: lio) framework, which suppor= t =3D the various t.10 scsi
> offloads. Vmware suppo= rt=3D s a subset of these called VAAI and Microsoft
> has = a =3D subset called ODX.
> Cloning is one if the t.10 exte= ns=3D ions that the lio target framework
> supports.
> I just tried cloning a vm and noticed that during the pro= ce=3D ss there is a
> lof of traffic over the iscsi interf= ac=3D es on the Storage Pool Manager
> host and the iscsi = ta=3D rget machine.
> With proper support for t.10 cloning= I=3D shoudn't see any traffic on the
> isci links (or ve= ry=3D minimal traffic)
> Is there some way to enable the = st=3D orage offload functionality in Ovirt?
> If not, is t= hi=3D s on the VDSM roadmap? If support were worked in this
> should be able to be applied to FCP connections as well. The = =3D lio target
> supports these offloads when acting as = a =3D Fiber Channel target also.
>
>= ; I'=3D ve asked this sometime back but there hasn't been much in the way of
> discussion on this users list or the devel list about th= is=3D feature.

>

yes, on the roadmap, tbd yet on when. netapp did a plugin enabling this for their storage array (VSC plugin)
I h=3D ope the ceph integration will provide this, though that doesn't solve
it for other type of storage domains yet.

=3D

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