Re: domU migration [Was: Re: drop xen4.8 ?]

[John Nemeth <jnemeth%cue.bc.ca@localhost>]

On Dec 18, 10:03pm, Chavdar Ivanov wrote:
} On Wed, 18 Dec 2019 at 18:43, Staffan Thomén <duck%shangtai.net@localhost> wrote:
} > John Nemeth wrote:
} > > On Dec 17,  8:21pm, Manuel Bouyer wrote:
} > > }
} > > } I plan to remove xen 4.8 from pkgsrc after the freeze. It didn't get
} > > } security updates since some time.
} > > }
} > > } Any objection ?
} > >
} > >       Yes.  I just surveyed my systems and found several at 4.8.
} > > I'll have to try to schedule them for updating.  However, production
} > > dom0s aren't easy since it means downtime for all associated domUs.
} > > I imagine that there are other people in the same situation.
} >
} > Speaking of downtime, Xen has the 'migrate' feature, has anyone actually tried
} > this with netbsd dom0:s?
} >
} > Secondly, do we have a filesystem that can be used here? What about the
} > upcoming 9.0 ZFS?
} 
} I can't say for sure if Xen domu's can use zvols as a backing storage,

     The back end driver expects a "physical disk".  If you use a
file as backing storage, then a script sets up a vnd(4) and passes
that to the backend driver.  If a zvol appears to the system as a
"physical disk" then it should work.  However, I have not tried it.

}-- End of excerpt from Chavdar Ivanov