---1603101515-1922022095-1415876950=:78136 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable I have an ovirt 3.5 cluster set up with three el7 hosts. Storage is provid= ed by two Fedora 20 machines and the connection is via multipath iscsi.=0AT= he performance is quite good. The Fedora 20 iscsi targets are using the 't= arget' (ie: lio) framework, which support the various t.10 scsi offloads. = Vmware supports a subset of these called VAAI and Microsoft has a subset ca= lled ODX.=0ACloning is one if the t.10 extensions that the lio target frame= work supports.=0A=0AI just tried cloning a vm and noticed that during the p= rocess there is a lof of traffic over the iscsi interfaces on the Storage P= ool Manager host and the iscsi target machine.=0AWith proper support for t.= 10 cloning I shoudn't see any traffic on the isci links (or very minimal tr= affic)=0A=0AIs there some way to enable the storage offload functionality i= n Ovirt?=0AIf not, is this on the VDSM roadmap? If support were worked in = this should be able to be applied to FCP connections as well. The lio targ= et supports these offloads when acting as a Fiber Channel target also.=0A= =0A=0AI've asked this sometime back but there hasn't been much in the way o= f discussion on this users list or the devel list about this feature. ---1603101515-1922022095-1415876950=:78136 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <html><body><div style=3D"color:#000; background-color:#fff; font-family:He= lveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, Sans-Serif;fo= nt-size:12px"><div>I have an ovirt 3.5 cluster set up with three el7 hosts.= Storage is provided by two Fedora 20 machines and the connection is = via multipath iscsi.</div><div>The performance is quite good. The Fed= ora 20 iscsi targets are using the 'target' (ie: lio) framework, which supp= ort the various t.10 scsi offloads. Vmware supports a subset of these= called VAAI and Microsoft has a subset called ODX.</div><div>Cloning is on= e if the t.10 extensions that the lio target framework supports.<br></div><= div>I just tried cloning a vm and noticed that during the process there is = a lof of traffic over the iscsi interfaces on the Storage Pool Manager host= and the iscsi target machine.</div><div>With proper support for t.10 cloni= ng I shoudn't see any traffic on the isci links (or very minimal traffic)<br></div><div style=3D"color: rgb(0, 0, 0); font-size: 12px; font= -family: HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-se= rif; background-color: transparent; font-style: normal;">Is there some way = to enable the storage offload functionality in Ovirt?</div><div style=3D"co= lor: rgb(0, 0, 0); font-size: 12px; font-family: HelveticaNeue,Helvetica Ne= ue,Helvetica,Arial,Lucida Grande,sans-serif; background-color: transparent;= font-style: normal;">If not, is this on the VDSM roadmap? If support= were worked in this should be able to be applied to FCP connections as wel= l. The lio target supports these offloads when acting as a Fiber Chan= nel target also.<br></div><div style=3D"color: rgb(0, 0, 0); font-size: 12p= x; font-family: HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,= sans-serif; background-color: transparent; font-style: normal;"><br></div><= div style=3D"color: rgb(0, 0, 0); font-size: 12px; font-family: HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif; bac= kground-color: transparent; font-style: normal;">I've asked this sometime b= ack but there hasn't been much in the way of discussion on this users list = or the devel list about this feature.<br></div><div><br></div></div></body>= </html> ---1603101515-1922022095-1415876950=:78136--