[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] New feature support - xl or xm ?
Thanks Stefano. >>I think that migrating VMs from 'xm hosts' to 'xl hosts' would > work even at the moment, if you use xl on both source and destination > hosts I am not sure what you meant here Are you suggesting retrofit of Oxl¹ to hosts using older hypervisor. Can migration functionality (including live migration) in Oxl¹ be designed for backward compatibility with Oxm¹. I am sure this will go a long way in helping existing users convert over to Oxl¹. - Pradeep Vincent On 6/8/10 2:17 AM, "Stefano Stabellini" <stefano.stabellini@xxxxxxxxxxxxx> wrote: > On Tue, 8 Jun 2010, Vincent, Pradeep wrote: >> I haven¹t looked deeply into Oxl¹ but.. >> >>> From the recent Xen summit, I walked away thinking Oxl¹ didn¹t have the >>> callback mechanisms (e.g. Cleanup etc) and this >> helped it stay stateless while falling short of full Oxm¹ replacement. This >> email thread indicates Oxm/xend¹ will be >> deprecated in due course of time. Did I miss anything here ? >> > > We intend to port xend to libxl at some point to smooth the migration > path, however xl is going to be where most of the development and > testing is going on, so it is worth considering a switch to xl in any > case. > xl does have the callback mechanisms for cleanup, they are implemented > in a per-VM daemon that is started when you create the domain. > However you can still create a VM without starting the related daemon > (no callbacks or cleanups in that case). > > >> Is migration of VMs from Oxm¹ managed hosts to Oxl¹ managed hosts expected to >> work ? >> >> I think moving away from commonly used xend/xm could be a bit of a thorn >> particularly if the Oxm¹ to Oxl¹ migration isn¹t >> expected to work. >> >> Thoughts ? >> > > There are only two things that xl doesn't have compared to xend: the > concept of managed domains (domains that are installed on your system > and may be offline) and an XML-RPC interface. > If you don't need these two things than switching shouldn't be > difficult. > I think that migrating VMs from 'xm hosts' to 'xl hosts' would > work even at the moment, if you use xl on both source and destination > hosts and specify the configuration file you used to create the domain > at the source. In any case it could be made to work without too many > efforts, given that your are not speaking about fully managed domains. > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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