2014/1/26 Itamar Heim <ih...@redhat.com> > On 01/25/2014 04:23 AM, Kewei Yu wrote: > >> Hi all: >> There is a "machine type" in cluster, It will decide which machine >> of Qemu will be used, When we add the first host into cluster, a default >> machine type is shown. We can correct the DB's value of the engine to >> set the machine type. >> I just want to know how dose cluster choice the default machine? It >> is decided by VDSM? Qemu? or It is only fixed value in engine's DB? >> >> Regard >> Kewei >> >> >> _______________________________________________ >> vdsm-devel mailing list >> vdsm-devel@lists.fedorahosted.org >> https://lists.fedorahosted.org/mailman/listinfo/vdsm-devel >> >> > basically, for fedora its 'pc', which may have some live migration issues > between different versions in the same cluster. > for .el6, its 'rhel63/rhel64/rhel65/etc.', which is a stable definition of > emulation mode for the cluster (i.e., even a .el7 host should live migrate > to .el6 if we specify its emulation mode as rhel65, etc.) > > engine defines per cluster level the expected emulation mode. > vdsm reports from libvirt from qemu, so engine can check the host is a > match. > if the first host in the cluster is fedora, it will be set to 'pc', if its > .el6, it will be set to the 'rhelxx' option. > Thanks for your answer, It is helpful to me.
Regard Kewei
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