On Fri, Nov 25, 2011 at 06:42:42PM +0800, Osier Yang wrote: > On 2011年11月25日 18:28, Daniel P. Berrange wrote: > >On Fri, Nov 25, 2011 at 04:55:02PM +0800, Osier Yang wrote: > > > >> > >><quote> > >>AFAIU libvirt needs a way to: > >> > >>- Associate a virtual adapter WWN with a VM (in the VM xml) > >>- Learn to start a virtual adapter when the VM is started, and destroy the > >> adapter when the VM is stopped. > >>- Possibly a way to associate a WWN with a scsi pool, to start / stop a > >> virtual adapter with the pool. > >></quote> > >> > >>But afer thinking more, I'd think it might be not good idea: > >> > >>As far as I could understand, the requirement of the BZ wants > >>a way to create/migrate a guest with NPIV. I'm goint to talk > >>create first,and migration then. > > > >The desire to assocaite WWNN/WWPN with a VM is just one part of a more > >general need to expand libvirt's SCSI support. Paulo started a design > >thread on the subject a month or so back which sort of converged into > >agreement: > > > >https://www.redhat.com/archives/libvir-list/2011-October/msg01253.html > > > > Yes, I read this thread before, but it looks to me Paolo was talking > about LUN, scsi host, and vHBA passthrough. It's a bit different > with what I'm trying to resolve (There is no passthrough here, but > about how to design a good workflow between virt-manager / Boxes > and libvirt for using (creating and migration ) a FC LUN as a normal > disk). The useful thing in the discussion of the thread may be > define the (v)HBA as a controller though. > > Or I misunderstood something? I've found that when people generally talk about associating iSCSI LUNs with a guest, they have always been expecting SCSI LUN passthrough, or passthrough of the entire iSCSI vHBA. If we're considering a non-passthrough use case, then IMHO the problem should be generalized to How do we associated a storage volume with a VM ? ie not something that is specific to (i)SCSI. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :| -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list