[virt-tools-list] KVM Migration Using Virsh

Jeff Hardy hardyjm at potsdam.edu
Mon Oct 12 13:26:36 UTC 2009


I have been trying to get migration and/or live migration working on a 
pair of KVM systems, using this syntax on host system named blade1:

virsh migrate sputnik qemu+ssh://blade2/system
virsh migrate --live sputnik qemu+ssh://blade2/system

The VM makes it to the destination fine, but begins with a reboot in 
both cases.  The libvirt logfile on the destination shows only:

  LC_ALL=C PATH=/sbin:/usr/sbin:/bin:/usr/bin /usr/bin/qemu-kvm -S -M pc 
-m 512 -smp 1 -name sputnik -uuid c2bffc39-a9b5-29dc-1ca5-fb49ac664c1d 
-monitor pty -pidfile /var/run/libvirt/qemu//sputnik.pid -boot c -drive 
file=/mnt/os2/sputnik-disk0,if=virtio,index=0,boot=on -net 
nic,macaddr=00:16:3e:10:13:e3,vlan=0,model=virtio -net tap,fd=17,vlan=0 
-serial pty -parallel none -usb -usbdevice tablet -vnc 127.0.0.1:0 
-incoming tcp:0.0.0.0:49154
char device redirected to /dev/pts/2
char device redirected to /dev/pts/3

Both machines are configured identically, with identically named bridges 
to the same networks, and the raw VM image mounted at the same location 
on a clustered filesystem.  Each host system is on kernel 
2.6.30.8-64.fc11.x86_64 and libvirt-0.6.2-17.fc11.x86_64.

Is this something I should expect to work?  This link still includes 
work on migration on a todo list, but it has for some time: 
http://wiki.libvirt.org/page/TodoDriverKVM.  Thanks in advance.

-Jeff

--
Jeffrey M Hardy
Systems Analyst
hardyjm at potsdam.edu




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