> From: "Daniel P. Berrangé" <berrange@redhat.com>
> To: Motohiro Kawahito <JL25131@jp.ibm.com>
> Cc: libvir-list@redhat.com
> Date: 2021/07/16 17:22
> Subject: [EXTERNAL] Re: Question about skipping virDomainDiskDefAssignAddress
>
> On Fri, Jul 16, 2021 at 01:01:50PM +0900, Motohiro Kawahito wrote:
> > > From: "Daniel P. Berrangé" <berrange@redhat.com>
> > > To: Motohiro Kawahito <JL25131@jp.ibm.com>
> > > Cc: libvir-list@redhat.com
> > > Date: 2021/07/16 00:42
> > > Subject: [EXTERNAL] Re: Question about skipping
> > virDomainDiskDefAssignAddress
> > >
> >
> > > With the exception of paravirtualized Xen guests, this field in
> > > libvirt XML is *completely* independant of the guest assigned
> > > device name.
> > >
> > > eg the XML might say /dev/vda, but the guest might decde to
> > > call it /dev/sda, or /dev/whatever or really absolutely
> > > anything.
> >
> > Thank you very much for this information! I understand it.
> > However, I don't understand how we can pass the target device information
> > (e.g. 0A80) without an error. Do you know how to do it?
> >
> > My question was not good, so I opened another thread (How do we specify
> > disk device names for non-Linux VMs in XML?).
>
> There is nothing that needs passing. The guest OS decides its naming
> however it wants to.

We need to control device number from user. This device number would be used later, such as detach-disk. Can we pass device number from outside?

Thanks,
Motohiro Kawahito, Commercial Systems, IBM Research - Tokyo
19-21 Nihonbashi, Hakozaki-cho Chuo-ku, Tokyo 103-8510, Japan


"Daniel P. Berrangé" <berrange@redhat.com> wrote on 2021/07/16 17:21:45:

> From: "Daniel P. Berrangé" <berrange@redhat.com>
> To: Motohiro Kawahito <JL25131@jp.ibm.com>
> Cc: libvir-list@redhat.com
> Date: 2021/07/16 17:22
> Subject: [EXTERNAL] Re: Question about skipping virDomainDiskDefAssignAddress
>
> On Fri, Jul 16, 2021 at 01:01:50PM +0900, Motohiro Kawahito wrote:
> > > From: "Daniel P. Berrangé" <berrange@redhat.com>
> > > To: Motohiro Kawahito <JL25131@jp.ibm.com>
> > > Cc: libvir-list@redhat.com
> > > Date: 2021/07/16 00:42
> > > Subject: [EXTERNAL] Re: Question about skipping
> > virDomainDiskDefAssignAddress
> > >
> >
> > > With the exception of paravirtualized Xen guests, this field in
> > > libvirt XML is *completely* independant of the guest assigned
> > > device name.
> > >
> > > eg the XML might say /dev/vda, but the guest might decde to
> > > call it /dev/sda, or /dev/whatever or really absolutely
> > > anything.
> >
> > Thank you very much for this information! I understand it.
> > However, I don't understand how we can pass the target device information
> > (e.g. 0A80) without an error. Do you know how to do it?
> >
> > My question was not good, so I opened another thread (How do we specify
> > disk device names for non-Linux VMs in XML?).
>
> There is nothing that needs passing. The guest OS decides its naming
> however it wants to.
>
>
> Regards,
> Daniel
> --
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>