Re: [libvirt] Associate a LUN as disk with WWNN/WWPN
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?
Thanks
Osier