Hello, i migrated the vm to the dsetination but when i remigrate to its original host is gives me. [root@node0 ~]# virsh migrate try3 --live qemu+ssh://<a href="http://100.100.102.106/system">100.100.102.106/system</a> --unsafe <a href="mailto:root@100.100.102.106">root@100.100.102.106</a>'s password: error: internal error hostname on destination resolved to localhost, but migration requires an FQDN. <div class="gmail_quote">On Fri, Mar 15, 2013 at 1:10 AM, Cole Robinson <<a href="mailto:crobinso@redhat.com" target="_blank">crobinso@redhat.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On 03/14/2013 03:17 AM, Digvijay wrote: > [root@node0 ~]# virsh migrate --live try1 qemu+ssh://<a href="http://root@100.100.102.106/system" target="_blank">root@100.100.102.106/system</a> > --unsafe > <a href="mailto:root@100.100.102.106">root@100.100.102.106</a>'s password: > error: operation failed: migration job: unexpectedly failed > error: Reconnected to the hypervisor > CC-ing libvirt-users I think that virsh command should work. Look at /var/log/libvirt/qemu/$vmname.log on both the source host and the destination host. > > I tried to run the migration but it is not doing profitably.I also used virtual > machine manager but it is giving me " unsafe operation" > > Unable to migrate guest: Unsafe migration: Migration may lead to data corruption > if disks use cache != none > > Traceback (most recent call last): > File "/usr/share/virt-manager/virtManager/asyncjob.py", line 96, in cb_wrapper > callback(asyncjob, *args, **kwargs) > File "/usr/share/virt-manager/virtManager/migrate.py", line 553, in _async_migrate > vm.migrate(dstconn, migrate_uri, rate, live, secure, meter=meter) > File "/usr/share/virt-manager/virtManager/domain.py", line 1163, in migrate > self._backend.migrate(destconn.vmm, flags, newname, interface, rate) > File "/usr/lib64/python2.7/site-packages/libvirt.py", line 822, in migrate > if ret is None:raise libvirtError('virDomainMigrate() failed', dom=self) > libvirtError: Unsafe migration: Migration may lead to data corruption if disks > use cache != none Like the error says, your disks need to have cache=None or libvirt won't allow the migration. You can change that setting per disk in the VM details UI in virt-manager. - Cole </blockquote></div>