Re: [Libvir] Is it possible to add an interface to intercept the migration process?

Jack Meng wrote: I'm still a bit unclear about what you're trying to do. Is the external storage mounted on the guest at the point when you're doing the migration? If it is connected then you'd need to umount it before migration and mount it (with a new device name) afterwards. Possibly an update to /etc/fstab would be in order too. This seems to preclude live migration and requires cooperation from the guest during migration, so no special support by the HV is required. You can just signal to the guest that it is about to be migrated and needs to do the umount/rename and wait until after it has been migrated to signal it again to remount. If the external storage is actually your root filesystem then you are probably s.o.l at this point. Rich. -- Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/ Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 03798903